7345657920 has 112 divisors (see below), whose sum is σ = 23393936448. Its totient is φ = 1952839680.

The previous prime is 7345657903. The next prime is 7345657933. The reversal of 7345657920 is 297565437.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 7345657920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306202 + ... + 329318.

Almost surely, 2^7345657920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7345657920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11696968224).

7345657920 is an abundant number, since it is smaller than the sum of its proper divisors (16048278528).

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

7345657920 is a wasteful number, since it uses less digits than its factorization.

7345657920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23468 (or 23458 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 48.

The square root of 7345657920 is about 85706.8137314648. The cubic root of 7345657920 is about 1943.9133392925.

The spelling of 7345657920 in words is "seven billion, three hundred forty-five million, six hundred fifty-seven thousand, nine hundred twenty".