31948420 has 24 divisors (see below), whose sum is σ = 76676544. Its totient is φ = 10953696.

The previous prime is 31948409. The next prime is 31948463. The reversal of 31948420 is 2484913.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113962 + ... + 114241.

It is an arithmetic number, because the mean of its divisors is an integer number (3194856).

Almost surely, 2^31948420 is an apocalyptic number.

It is an amenable number.

31948420 is an abundant number, since it is smaller than the sum of its proper divisors (44728124).

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

31948420 is a wasteful number, since it uses less digits than its factorization.

31948420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228219 (or 228217 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 31948420 is about 5652.2933398754. The cubic root of 31948420 is about 317.3095391892.

The spelling of 31948420 in words is "thirty-one million, nine hundred forty-eight thousand, four hundred twenty".