30057248 has 24 divisors (see below), whose sum is σ = 63728028. Its totient is φ = 13872384.

The previous prime is 30057199. The next prime is 30057257. The reversal of 30057248 is 84275003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28174864 + 1882384 = 5308^2 + 1372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30057248.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35711 + ... + 36542.

Almost surely, 2^30057248 is an apocalyptic number.

It is an amenable number.

30057248 is an abundant number, since it is smaller than the sum of its proper divisors (33670780).

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

30057248 is a wasteful number, since it uses less digits than its factorization.

30057248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72276 (or 72268 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 30057248 is about 5482.4490877709. The cubic root of 30057248 is about 310.9207726143.

The spelling of 30057248 in words is "thirty million, fifty-seven thousand, two hundred forty-eight".