231451600 has 120 divisors (see below), whose sum is σ = 596365848. Its totient is φ = 86016000.

The previous prime is 231451589. The next prime is 231451607. The reversal of 231451600 is 6154132.

It can be written as a sum of positive squares in 12 ways, for example, as 10394176 + 221057424 = 3224^2 + 14868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231451607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 686632 + ... + 686968.

Almost surely, 2^231451600 is an apocalyptic number.

231451600 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 231451600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298182924).

231451600 is an abundant number, since it is smaller than the sum of its proper divisors (364914248).

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

231451600 is a wasteful number, since it uses less digits than its factorization.

231451600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 231451600 is about 15213.5334488737. The cubic root of 231451600 is about 613.9788283999.

The spelling of 231451600 in words is "two hundred thirty-one million, four hundred fifty-one thousand, six hundred".