1571028480 has 640 divisors, whose sum is σ = 6788136960. Its totient is φ = 336199680.

The previous prime is 1571028467. The next prime is 1571028493. The reversal of 1571028480 is 848201751.

1571028480 is a `hidden beast` number, since 1 + 571 + 0 + 2 + 8 + 4 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (1571028467) and next prime (1571028493).

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×1571028480² = 4936260969942220800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8225185 + ... + 8225375.

It is an arithmetic number, because the mean of its divisors is an integer number (10606464).

Almost surely, 2^1571028480 is an apocalyptic number.

1571028480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1571028480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3394068480).

1571028480 is an abundant number, since it is smaller than the sum of its proper divisors (5217108480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1571028480 is a wasteful number, since it uses less digits than its factorization.

1571028480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 1571028480 is about 39636.2016343645. The cubic root of 1571028480 is about 1162.5046160066.

The spelling of 1571028480 in words is "one billion, five hundred seventy-one million, twenty-eight thousand, four hundred eighty".