1478552940 has 144 divisors (see below), whose sum is σ = 4711150080. Its totient is φ = 389188800.

The previous prime is 1478552879. The next prime is 1478552969. The reversal of 1478552940 is 492558741.

1478552940 is a `hidden beast` number, since 1 + 4 + 7 + 8 + 552 + 94 + 0 = 666.

It is a super-2 number, since 2×1478552940² = 4372237592765287200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382015 + ... + 385865.

It is an arithmetic number, because the mean of its divisors is an integer number (32716320).

Almost surely, 2^1478552940 is an apocalyptic number.

1478552940 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 1478552940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2355575040).

1478552940 is an abundant number, since it is smaller than the sum of its proper divisors (3232597140).

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

1478552940 is a wasteful number, since it uses less digits than its factorization.

1478552940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 1478552940 is about 38451.9562571269. The cubic root of 1478552940 is about 1139.2323086271.

The spelling of 1478552940 in words is "one billion, four hundred seventy-eight million, five hundred fifty-two thousand, nine hundred forty".