32161396 has 24 divisors (see below), whose sum is σ = 57886920. Its totient is φ = 15628800.

The previous prime is 32161379. The next prime is 32161411. The reversal of 32161396 is 69316123.

It can be written as a sum of positive squares in 4 ways, for example, as 396900 + 31764496 = 630^2 + 5636^2 .

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, 20976 + ... + 22456.

It is an arithmetic number, because the mean of its divisors is an integer number (2411955).

Almost surely, 2^32161396 is an apocalyptic number.

It is an amenable number.

32161396 is a deficient number, since it is larger than the sum of its proper divisors (25725524).

32161396 is a wasteful number, since it uses less digits than its factorization.

32161396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635 (or 1633 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 32161396 is about 5671.1018329774. The cubic root of 32161396 is about 318.0130659294.

The spelling of 32161396 in words is "thirty-two million, one hundred sixty-one thousand, three hundred ninety-six".