30997488 has 40 divisors (see below), whose sum is σ = 80359936. Its totient is φ = 10296000.

The previous prime is 30997457. The next prime is 30997501. The reversal of 30997488 is 88479903.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 14913 + ... + 16863.

Almost surely, 2^30997488 is an apocalyptic number.

It is an amenable number.

30997488 is an abundant number, since it is smaller than the sum of its proper divisors (49362448).

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

30997488 is a wasteful number, since it uses less digits than its factorization.

30997488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 30997488 is about 5567.5387740006. The cubic root of 30997488 is about 314.1295799043.

The spelling of 30997488 in words is "thirty million, nine hundred ninety-seven thousand, four hundred eighty-eight".