31090074 has 8 divisors (see below), whose sum is σ = 62180160. Its totient is φ = 10363356.

The previous prime is 31090067. The next prime is 31090079. The reversal of 31090074 is 47009013.

It is a sphenic number, since it is the product of 3 distinct primes.

31090074 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (31090079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2590834 + ... + 2590845.

It is an arithmetic number, because the mean of its divisors is an integer number (7772520).

Almost surely, 2^31090074 is an apocalyptic number.

31090074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31090074 is a wasteful number, since it uses less digits than its factorization.

31090074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5181684.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 31090074 is about 5575.8473795469. The cubic root of 31090074 is about 314.4420255705.

Adding to 31090074 its reverse (47009013), we get a palindrome (78099087).

The spelling of 31090074 in words is "thirty-one million, ninety thousand, seventy-four".