30213930 has 32 divisors (see below), whose sum is σ = 76780224. Its totient is φ = 7582976.

The previous prime is 30213901. The next prime is 30213949. The reversal of 30213930 is 3931203.

It is a junction number, because it is equal to n+sod(n) for n = 30213897 and 30213906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29112 + ... + 30131.

It is an arithmetic number, because the mean of its divisors is an integer number (2399382).

Almost surely, 2^30213930 is an apocalyptic number.

30213930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30213930 is an abundant number, since it is smaller than the sum of its proper divisors (46566294).

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

30213930 is a wasteful number, since it uses less digits than its factorization.

30213930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59270.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 30213930 is about 5496.7199310134. The cubic root of 30213930 is about 311.4600910579.

The spelling of 30213930 in words is "thirty million, two hundred thirteen thousand, nine hundred thirty".