31396196 has 24 divisors (see below), whose sum is σ = 61744704. Its totient is φ = 13860000.

The previous prime is 31396177. The next prime is 31396199. The reversal of 31396196 is 69169313.

It is a super-2 number, since 2×31396196² = 1971442246540832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31396199) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11930 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (2572696).

Almost surely, 2^31396196 is an apocalyptic number.

It is an amenable number.

31396196 is a deficient number, since it is larger than the sum of its proper divisors (30348508).

31396196 is a wasteful number, since it uses less digits than its factorization.

31396196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26291 (or 26289 counting only the distinct ones).

The product of its digits is 26244, while the sum is 38.

The square root of 31396196 is about 5603.2308537129. The cubic root of 31396196 is about 315.4706862691.

The spelling of 31396196 in words is "thirty-one million, three hundred ninety-six thousand, one hundred ninety-six".