3638156 has 6 divisors (see below), whose sum is σ = 6366780. Its totient is φ = 1819076.

The previous prime is 3638149. The next prime is 3638171. The reversal of 3638156 is 6518363.

3638156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454766 + ... + 454773.

It is an arithmetic number, because the mean of its divisors is an integer number (1061130).

Almost surely, 2^3638156 is an apocalyptic number.

It is an amenable number.

3638156 is a deficient number, since it is larger than the sum of its proper divisors (2728624).

3638156 is a wasteful number, since it uses less digits than its factorization.

3638156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909543 (or 909541 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 3638156 is about 1907.3950823047. The cubic root of 3638156 is about 153.8014532441.

The spelling of 3638156 in words is "three million, six hundred thirty-eight thousand, one hundred fifty-six".