3642872 has 32 divisors (see below), whose sum is σ = 7259520. Its totient is φ = 1710720.

The previous prime is 3642839. The next prime is 3642883. The reversal of 3642872 is 2782463.

It is an Ulam number.

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, 8978 + ... + 9374.

It is an arithmetic number, because the mean of its divisors is an integer number (226860).

Almost surely, 2^3642872 is an apocalyptic number.

It is an amenable number.

3642872 is a deficient number, since it is larger than the sum of its proper divisors (3616648).

3642872 is a wasteful number, since it uses less digits than its factorization.

3642872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 467 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 3642872 is about 1908.6309229393. The cubic root of 3642872 is about 153.8678801624.

The spelling of 3642872 in words is "three million, six hundred forty-two thousand, eight hundred seventy-two".