231823456 has 24 divisors (see below), whose sum is σ = 471127104. Its totient is φ = 112172160.

The previous prime is 231823433. The next prime is 231823457. The reversal of 231823456 is 654328132.

It is a super-2 number, since 2×231823456² = 107484229503567872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231823457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115855 + ... + 117838.

It is an arithmetic number, because the mean of its divisors is an integer number (19630296).

Almost surely, 2^231823456 is an apocalyptic number.

It is an amenable number.

231823456 is an abundant number, since it is smaller than the sum of its proper divisors (239303648).

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

231823456 is a wasteful number, since it uses less digits than its factorization.

231823456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233734 (or 233726 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 231823456 is about 15225.7497680738. The cubic root of 231823456 is about 614.3074637745.

The spelling of 231823456 in words is "two hundred thirty-one million, eight hundred twenty-three thousand, four hundred fifty-six".