30047130 has 24 divisors (see below), whose sum is σ = 78122772. Its totient is φ = 8012544.

The previous prime is 30047123. The next prime is 30047167. The reversal of 30047130 is 3174003.

It can be written as a sum of positive squares in 2 ways, for example, as 24472809 + 5574321 = 4947^2 + 2361^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166839 + ... + 167018.

Almost surely, 2^30047130 is an apocalyptic number.

30047130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30047130 is an abundant number, since it is smaller than the sum of its proper divisors (48075642).

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

30047130 is a wasteful number, since it uses less digits than its factorization.

30047130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333870 (or 333867 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30047130 is about 5481.5262473147. The cubic root of 30047130 is about 310.8858808699.

The spelling of 30047130 in words is "thirty million, forty-seven thousand, one hundred thirty".