30117748 has 12 divisors (see below), whose sum is σ = 52830820. Its totient is φ = 15023232.

The previous prime is 30117733. The next prime is 30117749. The reversal of 30117748 is 84771103.

It can be written as a sum of positive squares in 2 ways, for example, as 10510564 + 19607184 = 3242^2 + 4428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30117749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6963 + ... + 10426.

Almost surely, 2^30117748 is an apocalyptic number.

It is an amenable number.

30117748 is a deficient number, since it is larger than the sum of its proper divisors (22713072).

30117748 is a wasteful number, since it uses less digits than its factorization.

30117748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17826 (or 17824 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 30117748 is about 5487.9639211642. The cubic root of 30117748 is about 311.1292425752.

The spelling of 30117748 in words is "thirty million, one hundred seventeen thousand, seven hundred forty-eight".