31374616 has 64 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 12216960.

The previous prime is 31374533. The next prime is 31374617. The reversal of 31374616 is 61647313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31374617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51385 + ... + 51991.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^31374616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31374616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36771840).

31374616 is an abundant number, since it is smaller than the sum of its proper divisors (42169064).

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

31374616 is a wasteful number, since it uses less digits than its factorization.

31374616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 700 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 31374616 is about 5601.3048479796. The cubic root of 31374616 is about 315.3983906978.

The spelling of 31374616 in words is "thirty-one million, three hundred seventy-four thousand, six hundred sixteen".