231032404 has 12 divisors (see below), whose sum is σ = 405768244. Its totient is φ = 115098624.

The previous prime is 231032359. The next prime is 231032411. The reversal of 231032404 is 404230132.

231032404 = T₇ + T₈ + ... + T₁₁₁₄.

It can be written as a sum of positive squares in 2 ways, for example, as 76527504 + 154504900 = 8748^2 + 12430^2 .

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 3 ways as a sum of consecutive naturals, for example, 103149 + ... + 105364.

Almost surely, 2^231032404 is an apocalyptic number.

It is an amenable number.

231032404 is a deficient number, since it is larger than the sum of its proper divisors (174735840).

231032404 is a wasteful number, since it uses less digits than its factorization.

231032404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208794 (or 208792 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 231032404 is about 15199.7501295252. The cubic root of 231032404 is about 613.6079329881.

Adding to 231032404 its reverse (404230132), we get a palindrome (635262536).

The spelling of 231032404 in words is "two hundred thirty-one million, thirty-two thousand, four hundred four".