31418946 has 24 divisors (see below), whose sum is σ = 73311420. Its totient is φ = 9667296.

The previous prime is 31418921. The next prime is 31418953. The reversal of 31418946 is 64981413.

It can be written as a sum of positive squares in 2 ways, for example, as 31304025 + 114921 = 5595^2 + 339^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31418946.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66901 + ... + 67368.

Almost surely, 2^31418946 is an apocalyptic number.

31418946 is an abundant number, since it is smaller than the sum of its proper divisors (41892474).

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

31418946 is a wasteful number, since it uses less digits than its factorization.

31418946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134290 (or 134287 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 31418946 is about 5605.2605648623. The cubic root of 31418946 is about 315.5468656181.

The spelling of 31418946 in words is "thirty-one million, four hundred eighteen thousand, nine hundred forty-six".