7040640920 has 32 divisors (see below), whose sum is σ = 15863119920. Its totient is φ = 2812402560.

The previous prime is 7040640913. The next prime is 7040641019. The reversal of 7040640920 is 290460407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90746 + ... + 149385.

Almost surely, 2^7040640920 is an apocalyptic number.

It is an amenable number.

7040640920 is an abundant number, since it is smaller than the sum of its proper divisors (8822479000).

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

7040640920 is a wasteful number, since it uses less digits than its factorization.

7040640920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240875 (or 240871 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 7040640920 is about 83908.5270994552. The cubic root of 7040640920 is about 1916.6261023635.

The spelling of 7040640920 in words is "seven billion, forty million, six hundred forty thousand, nine hundred twenty".