31340404 has 12 divisors (see below), whose sum is σ = 55013728. Its totient is φ = 15622200.

The previous prime is 31340381. The next prime is 31340417. The reversal of 31340404 is 40404313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10512 + ... + 13159.

Almost surely, 2^31340404 is an apocalyptic number.

It is an amenable number.

31340404 is a deficient number, since it is larger than the sum of its proper divisors (23673324).

31340404 is a wasteful number, since it uses less digits than its factorization.

31340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24006 (or 24004 counting only the distinct ones).

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

The square root of 31340404 is about 5598.2500837315. The cubic root of 31340404 is about 315.2837084527.

Adding to 31340404 its reverse (40404313), we get a palindrome (71744717).

The spelling of 31340404 in words is "thirty-one million, three hundred forty thousand, four hundred four".