31404196 has 24 divisors (see below), whose sum is σ = 57375864. Its totient is φ = 15025920.

The previous prime is 31404167. The next prime is 31404211. The reversal of 31404196 is 69140413.

It can be written as a sum of positive squares in 4 ways, for example, as 756900 + 30647296 = 870^2 + 5536^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6886 + ... + 10498.

It is an arithmetic number, because the mean of its divisors is an integer number (2390661).

Almost surely, 2^31404196 is an apocalyptic number.

It is an amenable number.

31404196 is a deficient number, since it is larger than the sum of its proper divisors (25971668).

31404196 is a wasteful number, since it uses less digits than its factorization.

31404196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 31404196 is about 5603.9446820967. The cubic root of 31404196 is about 315.4974788054.

The spelling of 31404196 in words is "thirty-one million, four hundred four thousand, one hundred ninety-six".