231450688 has 56 divisors (see below), whose sum is σ = 539122112. Its totient is φ = 96505344.

The previous prime is 231450649. The next prime is 231450689. The reversal of 231450688 is 886054132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (231450689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9595 + ... + 23557.

Almost surely, 2^231450688 is an apocalyptic number.

231450688 is a gapful number since it is divisible by the number (28) 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 231450688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269561056).

231450688 is an abundant number, since it is smaller than the sum of its proper divisors (307671424).

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

231450688 is a wasteful number, since it uses less digits than its factorization.

231450688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14019 (or 14009 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 231450688 is about 15213.5034755312. The cubic root of 231450688 is about 613.9780219686.

The spelling of 231450688 in words is "two hundred thirty-one million, four hundred fifty thousand, six hundred eighty-eight".