231477372 has 288 divisors, whose sum is σ = 772208640. Its totient is φ = 59512320.

The previous prime is 231477353. The next prime is 231477373. The reversal of 231477372 is 273774132.

It is a happy number.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (231477373) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 2788843 + ... + 2788925.

It is an arithmetic number, because the mean of its divisors is an integer number (2681280).

Almost surely, 2^231477372 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 231477372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386104320).

231477372 is an abundant number, since it is smaller than the sum of its proper divisors (540731268).

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

231477372 is a wasteful number, since it uses less digits than its factorization.

231477372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 143 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 231477372 is about 15214.3804343128. The cubic root of 231477372 is about 614.0016162817.

The spelling of 231477372 in words is "two hundred thirty-one million, four hundred seventy-seven thousand, three hundred seventy-two".