231029888 has 16 divisors (see below), whose sum is σ = 460255110. Its totient is φ = 115514880.

The previous prime is 231029879. The next prime is 231029941. The reversal of 231029888 is 888920132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 171924544 + 59105344 = 13112^2 + 7688^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902333 + ... + 902588.

Almost surely, 2^231029888 is an apocalyptic number.

It is an amenable number.

231029888 is a deficient number, since it is larger than the sum of its proper divisors (229225222).

231029888 is an equidigital number, since it uses as much as digits as its factorization.

231029888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804935 (or 1804923 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 231029888 is about 15199.6673647814. The cubic root of 231029888 is about 613.6057055327.

The spelling of 231029888 in words is "two hundred thirty-one million, twenty-nine thousand, eight hundred eighty-eight".