231229376 has 112 divisors (see below), whose sum is σ = 562758336. Its totient is φ = 92012544.

The previous prime is 231229367. The next prime is 231229399. The reversal of 231229376 is 673922132.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738596 + ... + 738908.

It is an arithmetic number, because the mean of its divisors is an integer number (5024628).

Almost surely, 2^231229376 is an apocalyptic number.

231229376 is the 12416-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231229376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281379168).

231229376 is an abundant number, since it is smaller than the sum of its proper divisors (331528960).

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

231229376 is a wasteful number, since it uses less digits than its factorization.

231229376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 436 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 231229376 is about 15206.2281976827. The cubic root of 231229376 is about 613.7822653150.

It can be divided in two parts, 2312 and 29376, that multiplied together give a cube (67917312 = 408³).

The spelling of 231229376 in words is "two hundred thirty-one million, two hundred twenty-nine thousand, three hundred seventy-six".