7325621920 has 48 divisors (see below), whose sum is σ = 17344498248. Its totient is φ = 2923863040.

The previous prime is 7325621911. The next prime is 7325621921. The reversal of 7325621920 is 291265237.

It can be written as a sum of positive squares in 4 ways, for example, as 4077077904 + 3248544016 = 63852^2 + 56996^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7325621920.

It is not an unprimeable number, because it can be changed into a prime (7325621921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24102 + ... + 123418.

Almost surely, 2^7325621920 is an apocalyptic number.

It is an amenable number.

7325621920 is an abundant number, since it is smaller than the sum of its proper divisors (10018876328).

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

7325621920 is a wasteful number, since it uses less digits than its factorization.

7325621920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99793 (or 99785 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 7325621920 is about 85589.8470614360. The cubic root of 7325621920 is about 1942.1443253813.

The spelling of 7325621920 in words is "seven billion, three hundred twenty-five million, six hundred twenty-one thousand, nine hundred twenty".