231842430 has 48 divisors (see below), whose sum is σ = 638252784. Its totient is φ = 58187520.

The previous prime is 231842423. The next prime is 231842441. The reversal of 231842430 is 34248132.

231842430 is a `hidden beast` number, since 231 + 8 + 424 + 3 + 0 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 231842394 and 231842403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74236 + ... + 77295.

It is an arithmetic number, because the mean of its divisors is an integer number (13296933).

Almost surely, 2^231842430 is an apocalyptic number.

231842430 is an abundant number, since it is smaller than the sum of its proper divisors (406410354).

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

231842430 is a wasteful number, since it uses less digits than its factorization.

231842430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151561 (or 151558 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 231842430 is about 15226.3728445090. The cubic root of 231842430 is about 614.3242230102.

The spelling of 231842430 in words is "two hundred thirty-one million, eight hundred forty-two thousand, four hundred thirty".