32072138 has 16 divisors (see below), whose sum is σ = 55057920. Its totient is φ = 13725936.

The previous prime is 32072123. The next prime is 32072141. The reversal of 32072138 is 83127023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13895 + ... + 16037.

It is an arithmetic number, because the mean of its divisors is an integer number (3441120).

Almost surely, 2^32072138 is an apocalyptic number.

32072138 is a deficient number, since it is larger than the sum of its proper divisors (22985782).

32072138 is a wasteful number, since it uses less digits than its factorization.

32072138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 32072138 is about 5663.2268186962. The cubic root of 32072138 is about 317.7185978856.

The spelling of 32072138 in words is "thirty-two million, seventy-two thousand, one hundred thirty-eight".