231450438 has 16 divisors (see below), whose sum is σ = 487264320. Its totient is φ = 73089576.

The previous prime is 231450437. The next prime is 231450481. The reversal of 231450438 is 834054132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231450431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015020 + ... + 1015247.

It is an arithmetic number, because the mean of its divisors is an integer number (30454020).

Almost surely, 2^231450438 is an apocalyptic number.

231450438 is an abundant number, since it is smaller than the sum of its proper divisors (255813882).

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

231450438 is a wasteful number, since it uses less digits than its factorization.

231450438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030291.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 231450438 is about 15213.4952591441. The cubic root of 231450438 is about 613.9778009071.

The spelling of 231450438 in words is "two hundred thirty-one million, four hundred fifty thousand, four hundred thirty-eight".