231154400 has 72 divisors (see below), whose sum is σ = 566854344. Its totient is φ = 92044800.

The previous prime is 231154387. The next prime is 231154459. The reversal of 231154400 is 4451132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225890 + ... + 226910.

It is an arithmetic number, because the mean of its divisors is an integer number (7872977).

Almost surely, 2^231154400 is an apocalyptic number.

231154400 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 231154400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283427172).

231154400 is an abundant number, since it is smaller than the sum of its proper divisors (335699944).

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

231154400 is a wasteful number, since it uses less digits than its factorization.

231154400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 231154400 is about 15203.7626921759. The cubic root of 231154400 is about 613.7159186211.

The spelling of 231154400 in words is "two hundred thirty-one million, one hundred fifty-four thousand, four hundred".