31794490 has 32 divisors (see below), whose sum is σ = 70439040. Its totient is φ = 10062144.

The previous prime is 31794479. The next prime is 31794523. The reversal of 31794490 is 9449713.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16560 + ... + 18379.

It is an arithmetic number, because the mean of its divisors is an integer number (2201220).

Almost surely, 2^31794490 is an apocalyptic number.

31794490 is an abundant number, since it is smaller than the sum of its proper divisors (38644550).

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

31794490 is a wasteful number, since it uses less digits than its factorization.

31794490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34966.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 31794490 is about 5638.6603018802. The cubic root of 31794490 is about 316.7991111107.

The spelling of 31794490 in words is "thirty-one million, seven hundred ninety-four thousand, four hundred ninety".