232878239 has 16 divisors (see below), whose sum is σ = 261406464. Its totient is φ = 205632000.

The previous prime is 232878229. The next prime is 232878253. The reversal of 232878239 is 932878232.

It is a cyclic number.

It is not a de Polignac number, because 232878239 - 2²⁴ = 216101023 is a prime.

It is a super-2 number, since 2×232878239² = 108464548399482242, 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 232878239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232878229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90014 + ... + 92564.

It is an arithmetic number, because the mean of its divisors is an integer number (16337904).

Almost surely, 2^232878239 is an apocalyptic number.

232878239 is a deficient number, since it is larger than the sum of its proper divisors (28528225).

232878239 is a wasteful number, since it uses less digits than its factorization.

232878239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798.

The product of its digits is 290304, while the sum is 44.

The square root of 232878239 is about 15260.3485871064. The cubic root of 232878239 is about 615.2377418247.

The spelling of 232878239 in words is "two hundred thirty-two million, eight hundred seventy-eight thousand, two hundred thirty-nine".