31416585940 has 12 divisors (see below), whose sum is σ = 65974830516. Its totient is φ = 12566634368.

The previous prime is 31416585917. The next prime is 31416586009. The reversal of 31416585940 is 4958561413.

It can be written as a sum of positive squares in 2 ways, for example, as 13615155856 + 17801430084 = 116684^2 + 133422^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785414629 + ... + 785414668.

It is an arithmetic number, because the mean of its divisors is an integer number (5497902543).

Almost surely, 2^31416585940 is an apocalyptic number.

It is an amenable number.

31416585940 is an abundant number, since it is smaller than the sum of its proper divisors (34558244576).

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

31416585940 is a wasteful number, since it uses less digits than its factorization.

31416585940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570829306 (or 1570829304 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 31416585940 in words is "thirty-one billion, four hundred sixteen million, five hundred eighty-five thousand, nine hundred forty".