30057242 has 4 divisors (see below), whose sum is σ = 45085866. Its totient is φ = 15028620.

The previous prime is 30057199. The next prime is 30057257. The reversal of 30057242 is 24275003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15912121 + 14145121 = 3989^2 + 3761^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7514309 + ... + 7514312.

Almost surely, 2^30057242 is an apocalyptic number.

30057242 is a deficient number, since it is larger than the sum of its proper divisors (15028624).

30057242 is a wasteful number, since it uses less digits than its factorization.

30057242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15028623.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30057242 is about 5482.4485405702. The cubic root of 30057242 is about 310.9207519257.

The spelling of 30057242 in words is "thirty million, fifty-seven thousand, two hundred forty-two".