231922944 has 108 divisors (see below), whose sum is σ = 729560832. Its totient is φ = 70272000.

The previous prime is 231922921. The next prime is 231922981. The reversal of 231922944 is 449229132.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 231922899 and 231922908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20769 + ... + 29919.

Almost surely, 2^231922944 is an apocalyptic number.

231922944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231922944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364780416).

231922944 is an abundant number, since it is smaller than the sum of its proper divisors (497637888).

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

231922944 is a wasteful number, since it uses less digits than its factorization.

231922944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9184 (or 9167 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 231922944 is about 15229.0165145357. The cubic root of 231922944 is about 614.3953287405.

The spelling of 231922944 in words is "two hundred thirty-one million, nine hundred twenty-two thousand, nine hundred forty-four".