3942974520 has 48 divisors (see below), whose sum is σ = 12814668360. Its totient is φ = 1051459776.

The previous prime is 3942974507. The next prime is 3942974683. The reversal of 3942974520 is 254792493.

3942974520 is a `hidden beast` number, since 39 + 4 + 2 + 97 + 4 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5475994 + ... + 5476713.

Almost surely, 2^3942974520 is an apocalyptic number.

3942974520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3942974520 is an abundant number, since it is smaller than the sum of its proper divisors (8871693840).

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

3942974520 is a wasteful number, since it uses less digits than its factorization.

3942974520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952724 (or 10952717 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 3942974520 is about 62793.1088575809. The cubic root of 3942974520 is about 1579.8213919772.

The spelling of 3942974520 in words is "three billion, nine hundred forty-two million, nine hundred seventy-four thousand, five hundred twenty".