30564930 has 64 divisors (see below), whose sum is σ = 83524608. Its totient is φ = 7085760.

The previous prime is 30564893. The next prime is 30564943. The reversal of 30564930 is 3946503.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5577 + ... + 9603.

It is an arithmetic number, because the mean of its divisors is an integer number (1305072).

Almost surely, 2^30564930 is an apocalyptic number.

30564930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30564930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41762304).

30564930 is an abundant number, since it is smaller than the sum of its proper divisors (52959678).

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

30564930 is a wasteful number, since it uses less digits than its factorization.

30564930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 30564930 is about 5528.5558693026. Note that the first 3 decimals coincide. The cubic root of 30564930 is about 312.6615442100.

The spelling of 30564930 in words is "thirty million, five hundred sixty-four thousand, nine hundred thirty".