230131404 has 18 divisors (see below), whose sum is σ = 581721140. Its totient is φ = 76710456.

The previous prime is 230131381. The next prime is 230131457. The reversal of 230131404 is 404131032.

230131404 is a `hidden beast` number, since 230 + 1 + 31 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×230131404² = 105920926214022432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3196234 + ... + 3196305.

Almost surely, 2^230131404 is an apocalyptic number.

It is an amenable number.

230131404 is an abundant number, since it is smaller than the sum of its proper divisors (351589736).

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

230131404 is a wasteful number, since it uses less digits than its factorization.

230131404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392549 (or 6392544 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 230131404 is about 15170.0825310873. The cubic root of 230131404 is about 612.8092268367.

Adding to 230131404 its reverse (404131032), we get a palindrome (634262436).

The spelling of 230131404 in words is "two hundred thirty million, one hundred thirty-one thousand, four hundred four".