231869274 has 192 divisors, whose sum is σ = 637378560. Its totient is φ = 55520640.

The previous prime is 231869263. The next prime is 231869303. The reversal of 231869274 is 472968132.

231869274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2251107 + ... + 2251209.

It is an arithmetic number, because the mean of its divisors is an integer number (3319680).

Almost surely, 2^231869274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231869274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318689280).

231869274 is an abundant number, since it is smaller than the sum of its proper divisors (405509286).

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

231869274 is a wasteful number, since it uses less digits than its factorization.

231869274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 178 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 231869274 is about 15227.2543158640. The cubic root of 231869274 is about 614.3479320483.

The spelling of 231869274 in words is "two hundred thirty-one million, eight hundred sixty-nine thousand, two hundred seventy-four".