231057400 has 48 divisors (see below), whose sum is σ = 613956240. Its totient is φ = 79219200.

The previous prime is 231057391. The next prime is 231057401. The reversal of 231057400 is 4750132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231057401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81121 + ... + 83920.

It is an arithmetic number, because the mean of its divisors is an integer number (12790755).

Almost surely, 2^231057400 is an apocalyptic number.

231057400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231057400 is an abundant number, since it is smaller than the sum of its proper divisors (382898840).

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

231057400 is a wasteful number, since it uses less digits than its factorization.

231057400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165064 (or 165055 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 231057400 is about 15200.5723576450. The cubic root of 231057400 is about 613.6300614725.

The spelling of 231057400 in words is "two hundred thirty-one million, fifty-seven thousand, four hundred".