231404230 has 16 divisors (see below), whose sum is σ = 438450480. Its totient is φ = 87689952.

The previous prime is 231404209. The next prime is 231404269. The reversal of 231404230 is 32404132.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 231404198 and 231404207.

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, 608769 + ... + 609148.

It is an arithmetic number, because the mean of its divisors is an integer number (27403155).

Almost surely, 2^231404230 is an apocalyptic number.

231404230 is a deficient number, since it is larger than the sum of its proper divisors (207046250).

231404230 is a wasteful number, since it uses less digits than its factorization.

231404230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217943.

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

The square root of 231404230 is about 15211.9765316674. The cubic root of 231404230 is about 613.9369389199.

Adding to 231404230 its reverse (32404132), we get a palindrome (263808362).

The spelling of 231404230 in words is "two hundred thirty-one million, four hundred four thousand, two hundred thirty".