31103394 has 32 divisors (see below), whose sum is σ = 71383680. Its totient is φ = 8850432.

The previous prime is 31103381. The next prime is 31103417. The reversal of 31103394 is 49330113.

It is a super-2 number, since 2×31103394² = 1934842236638472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9922 + ... + 12674.

It is an arithmetic number, because the mean of its divisors is an integer number (2230740).

Almost surely, 2^31103394 is an apocalyptic number.

31103394 is an abundant number, since it is smaller than the sum of its proper divisors (40280286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31103394 is a wasteful number, since it uses less digits than its factorization.

31103394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 31103394 is about 5577.0416889243. The cubic root of 31103394 is about 314.4869248930.

The spelling of 31103394 in words is "thirty-one million, one hundred three thousand, three hundred ninety-four".