431340404 has 12 divisors (see below), whose sum is σ = 823468128. Its totient is φ = 196063800.

The previous prime is 431340401. The next prime is 431340443. The reversal of 431340404 is 404043134.

It is a self number, because there is not a number n which added to its sum of digits gives 431340404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431340401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4901552 + ... + 4901639.

It is an arithmetic number, because the mean of its divisors is an integer number (68622344).

Almost surely, 2^431340404 is an apocalyptic number.

431340404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

431340404 is a deficient number, since it is larger than the sum of its proper divisors (392127724).

431340404 is a wasteful number, since it uses less digits than its factorization.

431340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9803206 (or 9803204 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 431340404 is about 20768.7362157643. The cubic root of 431340404 is about 755.5676937336.

Adding to 431340404 its reverse (404043134), we get a palindrome (835383538).

The spelling of 431340404 in words is "four hundred thirty-one million, three hundred forty thousand, four hundred four".