30734564 has 36 divisors (see below), whose sum is σ = 62928684. Its totient is φ = 13095936.

The previous prime is 30734563. The next prime is 30734579. The reversal of 30734564 is 46543703.

It can be written as a sum of positive squares in 2 ways, for example, as 8076964 + 22657600 = 2842^2 + 4760^2 .

It is a super-2 number, since 2×30734564² = 1889226848540192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30734564.

It is not an unprimeable number, because it can be changed into a prime (30734563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45332 + ... + 46004.

It is an arithmetic number, because the mean of its divisors is an integer number (1748019).

Almost surely, 2^30734564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30734564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31464342).

30734564 is an abundant number, since it is smaller than the sum of its proper divisors (32194120).

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

30734564 is a wasteful number, since it uses less digits than its factorization.

30734564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 30734564 is about 5543.8762612454. The cubic root of 30734564 is about 313.2388966446.

The spelling of 30734564 in words is "thirty million, seven hundred thirty-four thousand, five hundred sixty-four".