3904072 has 8 divisors (see below), whose sum is σ = 7320150. Its totient is φ = 1952032.

The previous prime is 3904057. The next prime is 3904081. The reversal of 3904072 is 2704093.

It can be written as a sum of positive squares in only one way, i.e., 3896676 + 7396 = 1974^2 + 86^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243997 + ... + 244012.

Almost surely, 2^3904072 is an apocalyptic number.

It is an amenable number.

3904072 is a deficient number, since it is larger than the sum of its proper divisors (3416078).

3904072 is a wasteful number, since it uses less digits than its factorization.

3904072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488015 (or 488011 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3904072 is about 1975.8724655200. The cubic root of 3904072 is about 157.4608553092.

The spelling of 3904072 in words is "three million, nine hundred four thousand, seventy-two".