31790426 has 8 divisors (see below), whose sum is σ = 47710944. Its totient is φ = 15886780.

The previous prime is 31790413. The next prime is 31790441. The reversal of 31790426 is 62409713.

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

It is a super-2 number, since 2×31790426² = 2021262370522952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31790392 and 31790401.

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 3 ways as a sum of consecutive naturals, for example, 2891 + ... + 8481.

It is an arithmetic number, because the mean of its divisors is an integer number (5963868).

Almost surely, 2^31790426 is an apocalyptic number.

31790426 is a deficient number, since it is larger than the sum of its proper divisors (15920518).

31790426 is a wasteful number, since it uses less digits than its factorization.

31790426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 31790426 is about 5638.2999210755. The cubic root of 31790426 is about 316.7856126875.

The spelling of 31790426 in words is "thirty-one million, seven hundred ninety thousand, four hundred twenty-six".