231450494 has 24 divisors (see below), whose sum is σ = 390930624. Its totient is φ = 102634400.

The previous prime is 231450493. The next prime is 231450497. The reversal of 231450494 is 494054132.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231450494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231450493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1742 + ... + 21585.

It is an arithmetic number, because the mean of its divisors is an integer number (16288776).

Almost surely, 2^231450494 is an apocalyptic number.

231450494 is a deficient number, since it is larger than the sum of its proper divisors (159480130).

231450494 is a wasteful number, since it uses less digits than its factorization.

231450494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23392 (or 23381 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 231450494 is about 15213.4970996152. The cubic root of 231450494 is about 613.9778504249.

The spelling of 231450494 in words is "two hundred thirty-one million, four hundred fifty thousand, four hundred ninety-four".