389231235 has 24 divisors (see below), whose sum is σ = 714355200. Its totient is φ = 195378432.

The previous prime is 389231233. The next prime is 389231237. The reversal of 389231235 is 532132983.

It is an interprime number because it is at equal distance from previous prime (389231233) and next prime (389231237).

It is not a de Polignac number, because 389231235 - 2¹ = 389231233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389231235.

It is not an unprimeable number, because it can be changed into a prime (389231233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253635 + ... + 255164.

It is an arithmetic number, because the mean of its divisors is an integer number (29764800).

Almost surely, 2^389231235 is an apocalyptic number.

389231235 is a deficient number, since it is larger than the sum of its proper divisors (325123965).

389231235 is a wasteful number, since it uses less digits than its factorization.

389231235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508827 (or 508824 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 389231235 is about 19728.9440923735. The cubic root of 389231235 is about 730.1339811628.

The spelling of 389231235 in words is "three hundred eighty-nine million, two hundred thirty-one thousand, two hundred thirty-five".