3722639904 has 96 divisors (see below), whose sum is σ = 11429208000. Its totient is φ = 1175565312.

The previous prime is 3722639827. The next prime is 3722639933. The reversal of 3722639904 is 4099362273.

3722639904 is a `hidden beast` number, since 3 + 7 + 2 + 2 + 639 + 9 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 3722639904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96969 + ... + 129800.

It is an arithmetic number, because the mean of its divisors is an integer number (119054250).

Almost surely, 2^3722639904 is an apocalyptic number.

It is an amenable number.

3722639904 is an abundant number, since it is smaller than the sum of its proper divisors (7706568096).

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

3722639904 is a wasteful number, since it uses less digits than its factorization.

3722639904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226807 (or 226793 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 3722639904 is about 61013.4403553840. The cubic root of 3722639904 is about 1549.8286184429.

The spelling of 3722639904 in words is "three billion, seven hundred twenty-two million, six hundred thirty-nine thousand, nine hundred four".