231377072 has 40 divisors (see below), whose sum is σ = 481388832. Its totient is φ = 107340800.

The previous prime is 231377059. The next prime is 231377093. The reversal of 231377072 is 270773132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13322 + ... + 25302.

Almost surely, 2^231377072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231377072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240694416).

231377072 is an abundant number, since it is smaller than the sum of its proper divisors (250011760).

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

231377072 is a wasteful number, since it uses less digits than its factorization.

231377072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12077 (or 12071 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 231377072 is about 15211.0838535589. The cubic root of 231377072 is about 613.9129204139.

The spelling of 231377072 in words is "two hundred thirty-one million, three hundred seventy-seven thousand, seventy-two".