31323948 has 24 divisors (see below), whose sum is σ = 73801728. Its totient is φ = 10339536.

The previous prime is 31323923. The next prime is 31323961. The reversal of 31323948 is 84932313.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11436 + ... + 13907.

It is an arithmetic number, because the mean of its divisors is an integer number (3075072).

Almost surely, 2^31323948 is an apocalyptic number.

It is an amenable number.

31323948 is an abundant number, since it is smaller than the sum of its proper divisors (42477780).

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

31323948 is a wasteful number, since it uses less digits than its factorization.

31323948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25453 (or 25451 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 31323948 is about 5596.7801457624. The cubic root of 31323948 is about 315.2285164706.

The spelling of 31323948 in words is "thirty-one million, three hundred twenty-three thousand, nine hundred forty-eight".