31227980 has 48 divisors (see below), whose sum is σ = 79361856. Its totient is φ = 10076160.

The previous prime is 31227967. The next prime is 31228007. The reversal of 31227980 is 8972213.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4181 + ... + 8940.

It is an arithmetic number, because the mean of its divisors is an integer number (1653372).

Almost surely, 2^31227980 is an apocalyptic number.

It is an amenable number.

31227980 is an abundant number, since it is smaller than the sum of its proper divisors (48133876).

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

31227980 is a wasteful number, since it uses less digits than its factorization.

31227980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13154 (or 13152 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 31227980 is about 5588.2000680004. The cubic root of 31227980 is about 314.9062625258.

The spelling of 31227980 in words is "thirty-one million, two hundred twenty-seven thousand, nine hundred eighty".