231204407 has 8 divisors (see below), whose sum is σ = 278140800. Its totient is φ = 187744824.

The previous prime is 231204401. The next prime is 231204427. The reversal of 231204407 is 704402132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231204407 - 2²⁰ = 230155831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231204401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869057 + ... + 869322.

It is an arithmetic number, because the mean of its divisors is an integer number (34767600).

Almost surely, 2^231204407 is an apocalyptic number.

231204407 is a deficient number, since it is larger than the sum of its proper divisors (46936393).

231204407 is a wasteful number, since it uses less digits than its factorization.

231204407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738405.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 231204407 is about 15205.4071632429. The cubic root of 231204407 is about 613.7601716962.

Adding to 231204407 its reverse (704402132), we get a palindrome (935606539).

The spelling of 231204407 in words is "two hundred thirty-one million, two hundred four thousand, four hundred seven".