234312428 has 24 divisors (see below), whose sum is σ = 496192032. Its totient is φ = 94512384.

The previous prime is 234312413. The next prime is 234312443. The reversal of 234312428 is 824213432.

It is an interprime number because it is at equal distance from previous prime (234312413) and next prime (234312443).

It is a self number, because there is not a number n which added to its sum of digits gives 234312428.

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, 245651 + ... + 246602.

It is an arithmetic number, because the mean of its divisors is an integer number (20674668).

Almost surely, 2^234312428 is an apocalyptic number.

234312428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

234312428 is an abundant number, since it is smaller than the sum of its proper divisors (261879604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234312428 is a wasteful number, since it uses less digits than its factorization.

234312428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492281 (or 492279 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 234312428 is about 15307.2671630177. The cubic root of 234312428 is about 616.4981458513.

The spelling of 234312428 in words is "two hundred thirty-four million, three hundred twelve thousand, four hundred twenty-eight".