231465838 has 16 divisors (see below), whose sum is σ = 354776400. Its totient is φ = 113230656.

The previous prime is 231465803. The next prime is 231465851. The reversal of 231465838 is 838564132.

It is a super-2 number, since 2×231465838² = 107152868322084488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231465838.

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, 14170 + ... + 25762.

It is an arithmetic number, because the mean of its divisors is an integer number (22173525).

Almost surely, 2^231465838 is an apocalyptic number.

231465838 is a deficient number, since it is larger than the sum of its proper divisors (123310562).

231465838 is a wasteful number, since it uses less digits than its factorization.

231465838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11811.

The product of its digits is 138240, while the sum is 40.

The square root of 231465838 is about 15214.0013803075. The cubic root of 231465838 is about 613.9914180030.

The spelling of 231465838 in words is "two hundred thirty-one million, four hundred sixty-five thousand, eight hundred thirty-eight".