231089644 has 6 divisors (see below), whose sum is σ = 404406884. Its totient is φ = 115544820.

The previous prime is 231089627. The next prime is 231089659. The reversal of 231089644 is 446980132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28886202 + ... + 28886209.

Almost surely, 2^231089644 is an apocalyptic number.

It is an amenable number.

231089644 is a deficient number, since it is larger than the sum of its proper divisors (173317240).

231089644 is a wasteful number, since it uses less digits than its factorization.

231089644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57772415 (or 57772413 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 231089644 is about 15201.6329386024. The cubic root of 231089644 is about 613.6586041166.

The spelling of 231089644 in words is "two hundred thirty-one million, eighty-nine thousand, six hundred forty-four".