231390600 has 192 divisors, whose sum is σ = 842505600. Its totient is φ = 51425280.

The previous prime is 231390589. The next prime is 231390613. The reversal of 231390600 is 6093132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154656 + ... + 156144.

It is an arithmetic number, because the mean of its divisors is an integer number (4388050).

Almost surely, 2^231390600 is an apocalyptic number.

231390600 is a gapful number since it is divisible by the number (20) 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 231390600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421252800).

231390600 is an abundant number, since it is smaller than the sum of its proper divisors (611115000).

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

231390600 is a wasteful number, since it uses less digits than its factorization.

231390600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1543 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 231390600 is about 15211.5285228014. The cubic root of 231390600 is about 613.9248847975.

The spelling of 231390600 in words is "two hundred thirty-one million, three hundred ninety thousand, six hundred".