31116404 has 12 divisors (see below), whose sum is σ = 59404128. Its totient is φ = 14143800.

The previous prime is 31116377. The next prime is 31116427. The reversal of 31116404 is 40461113.

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, 353552 + ... + 353639.

It is an arithmetic number, because the mean of its divisors is an integer number (4950344).

Almost surely, 2^31116404 is an apocalyptic number.

It is an amenable number.

31116404 is a deficient number, since it is larger than the sum of its proper divisors (28287724).

31116404 is a wasteful number, since it uses less digits than its factorization.

31116404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707206 (or 707204 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 31116404 is about 5578.2079559658. The cubic root of 31116404 is about 314.5307668883.

Adding to 31116404 its reverse (40461113), we get a palindrome (71577517).

The spelling of 31116404 in words is "thirty-one million, one hundred sixteen thousand, four hundred four".