30072930 has 32 divisors (see below), whose sum is σ = 73094400. Its totient is φ = 7917312.

The previous prime is 30072929. The next prime is 30072943. The reversal of 30072930 is 3927003.

It is a super-2 number, since 2×30072930² = 1808762237569800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30072930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3975 + ... + 8714.

It is an arithmetic number, because the mean of its divisors is an integer number (2284200).

Almost surely, 2^30072930 is an apocalyptic number.

30072930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30072930 is an abundant number, since it is smaller than the sum of its proper divisors (43021470).

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

30072930 is a wasteful number, since it uses less digits than its factorization.

30072930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 30072930 is about 5483.8791015120. The cubic root of 30072930 is about 310.9748362445.

Adding to 30072930 its reverse (3927003), we get a palindrome (33999933).

The spelling of 30072930 in words is "thirty million, seventy-two thousand, nine hundred thirty".