231641304 has 32 divisors (see below), whose sum is σ = 584521920. Its totient is φ = 76491296.

The previous prime is 231641281. The next prime is 231641321. The reversal of 231641304 is 403146132.

231641304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42534 + ... + 47669.

It is an arithmetic number, because the mean of its divisors is an integer number (18266310).

Almost surely, 2^231641304 is an apocalyptic number.

231641304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231641304 is an abundant number, since it is smaller than the sum of its proper divisors (352880616).

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

231641304 is a wasteful number, since it uses less digits than its factorization.

231641304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90319 (or 90315 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 231641304 is about 15219.7668838915. The cubic root of 231641304 is about 614.1465271504.

Adding to 231641304 its reverse (403146132), we get a palindrome (634787436).

The spelling of 231641304 in words is "two hundred thirty-one million, six hundred forty-one thousand, three hundred four".