231937944 has 64 divisors (see below), whose sum is σ = 664727040. Its totient is φ = 66063360.

The previous prime is 231937913. The next prime is 231937949. The reversal of 231937944 is 449739132.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 231937896 and 231937905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231937949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57349 + ... + 61259.

It is an arithmetic number, because the mean of its divisors is an integer number (10386360).

Almost surely, 2^231937944 is an apocalyptic number.

231937944 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 231937944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332363520).

231937944 is an abundant number, since it is smaller than the sum of its proper divisors (432789096).

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

231937944 is a wasteful number, since it uses less digits than its factorization.

231937944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280 (or 4276 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 231937944 is about 15229.5089874887. The cubic root of 231937944 is about 614.4085741330.

The spelling of 231937944 in words is "two hundred thirty-one million, nine hundred thirty-seven thousand, nine hundred forty-four".