231649036 has 12 divisors (see below), whose sum is σ = 405728512. Its totient is φ = 115726608.

The previous prime is 231649027. The next prime is 231649037. The reversal of 231649036 is 630946132.

It is a happy number.

It is a super-2 number, since 2×231649036² = 107322551759458592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 231648992 and 231649010.

It is not an unprimeable number, because it can be changed into a prime (231649037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19020 + ... + 28723.

Almost surely, 2^231649036 is an apocalyptic number.

It is an amenable number.

231649036 is a deficient number, since it is larger than the sum of its proper divisors (174079476).

231649036 is a wasteful number, since it uses less digits than its factorization.

231649036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48960 (or 48958 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 231649036 is about 15220.0208935468. The cubic root of 231649036 is about 614.1533603130.

The spelling of 231649036 in words is "two hundred thirty-one million, six hundred forty-nine thousand, thirty-six".