3904200720 has 120 divisors (see below), whose sum is σ = 14984713536. Its totient is φ = 892387584.

The previous prime is 3904200697. The next prime is 3904200767. The reversal of 3904200720 is 270024093.

3904200720 is a `hidden beast` number, since 390 + 4 + 200 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382282 + ... + 392361.

Almost surely, 2^3904200720 is an apocalyptic number.

3904200720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3904200720 is an abundant number, since it is smaller than the sum of its proper divisors (11080512816).

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

3904200720 is a wasteful number, since it uses less digits than its factorization.

3904200720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774669 (or 774660 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 3904200720 is about 62483.6036092670. The cubic root of 3904200720 is about 1574.6258582195.

The spelling of 3904200720 in words is "three billion, nine hundred four million, two hundred thousand, seven hundred twenty".