31980048 has 40 divisors (see below), whose sum is σ = 82944096. Its totient is φ = 10617600.

The previous prime is 31980037. The next prime is 31980049. The reversal of 31980048 is 84008913.

It is not an unprimeable number, because it can be changed into a prime (31980049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12303 + ... + 14673.

Almost surely, 2^31980048 is an apocalyptic number.

It is an amenable number.

31980048 is an abundant number, since it is smaller than the sum of its proper divisors (50964048).

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

31980048 is a wasteful number, since it uses less digits than its factorization.

31980048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 31980048 is about 5655.0904502050. The cubic root of 31980048 is about 317.4142137050.

The spelling of 31980048 in words is "thirty-one million, nine hundred eighty thousand, forty-eight".