231078672 has 120 divisors (see below), whose sum is σ = 712284768. Its totient is φ = 69350400.

The previous prime is 231078667. The next prime is 231078697. The reversal of 231078672 is 276870132.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178347 + ... + 179637.

Almost surely, 2^231078672 is an apocalyptic number.

231078672 is a gapful number since it is divisible by the number (22) 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 231078672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356142384).

231078672 is an abundant number, since it is smaller than the sum of its proper divisors (481206096).

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

231078672 is a wasteful number, since it uses less digits than its factorization.

231078672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 231078672 is about 15201.2720520356. The cubic root of 231078672 is about 613.6488919133.

The spelling of 231078672 in words is "two hundred thirty-one million, seventy-eight thousand, six hundred seventy-two".