7456564240 has 20 divisors (see below), whose sum is σ = 17336512044. Its totient is φ = 2982625664.

The previous prime is 7456564211. The next prime is 7456564243. The reversal of 7456564240 is 424656547.

It can be written as a sum of positive squares in 2 ways, for example, as 4688962576 + 2767601664 = 68476^2 + 52608^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (7456564243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46603447 + ... + 46603606.

Almost surely, 2^7456564240 is an apocalyptic number.

It is an amenable number.

7456564240 is an abundant number, since it is smaller than the sum of its proper divisors (9879947804).

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

7456564240 is a wasteful number, since it uses less digits than its factorization.

7456564240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93207066 (or 93207060 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The square root of 7456564240 is about 86351.3997570393. The cubic root of 7456564240 is about 1953.6477188014.

The spelling of 7456564240 in words is "seven billion, four hundred fifty-six million, five hundred sixty-four thousand, two hundred forty".