31999014 has 48 divisors (see below), whose sum is σ = 71301984. Its totient is φ = 10368000.

The previous prime is 31999013. The next prime is 31999027. The reversal of 31999014 is 41099913.

It is a self number, because there is not a number n which added to its sum of digits gives 31999014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31999013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165702 + ... + 165894.

It is an arithmetic number, because the mean of its divisors is an integer number (1485458).

Almost surely, 2^31999014 is an apocalyptic number.

31999014 is an abundant number, since it is smaller than the sum of its proper divisors (39302970).

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

31999014 is a wasteful number, since it uses less digits than its factorization.

31999014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 31999014 is about 5656.7670979103. The cubic root of 31999014 is about 317.4769495738.

The spelling of 31999014 in words is "thirty-one million, nine hundred ninety-nine thousand, fourteen".