231469056 has 416 divisors, whose sum is σ = 880696320. Its totient is φ = 58392576.

The previous prime is 231469027. The next prime is 231469081. The reversal of 231469056 is 650964132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (416).

It is a super-2 number, since 2×231469056² = 107155847771062272, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231469056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10063861 + ... + 10063883.

Almost surely, 2^231469056 is an apocalyptic number.

231469056 is a gapful number since it is divisible by the number (26) 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 231469056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440348160).

231469056 is an abundant number, since it is smaller than the sum of its proper divisors (649227264).

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

231469056 is a wasteful number, since it uses less digits than its factorization.

231469056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 231469056 is about 15214.1071377850. The cubic root of 231469056 is about 613.9942633692.

The spelling of 231469056 in words is "two hundred thirty-one million, four hundred sixty-nine thousand, fifty-six".