1275274560 has 448 divisors, whose sum is σ = 4981358592. Its totient is φ = 270065664.

The previous prime is 1275274549. The next prime is 1275274573. The reversal of 1275274560 is 654725721.

It is a tau number, because it is divible by the number of its divisors (448).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 5718609 + ... + 5718831.

It is an arithmetic number, because the mean of its divisors is an integer number (11119104).

Almost surely, 2^1275274560 is an apocalyptic number.

1275274560 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 1275274560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2490679296).

1275274560 is an abundant number, since it is smaller than the sum of its proper divisors (3706084032).

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

1275274560 is a wasteful number, since it uses less digits than its factorization.

1275274560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 1275274560 is about 35710.9865447596. The cubic root of 1275274560 is about 1084.4292722105.

The spelling of 1275274560 in words is "one billion, two hundred seventy-five million, two hundred seventy-four thousand, five hundred sixty".