30734572 has 36 divisors (see below), whose sum is σ = 62355384. Its totient is φ = 13143040.

The previous prime is 30734563. The next prime is 30734579. The reversal of 30734572 is 27543703.

It is a super-2 number, since 2×30734572² = 1889227832046368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30734579) 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, 11508 + ... + 13924.

It is an arithmetic number, because the mean of its divisors is an integer number (1732094).

Almost surely, 2^30734572 is an apocalyptic number.

It is an amenable number.

30734572 is an abundant number, since it is smaller than the sum of its proper divisors (31620812).

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

30734572 is a wasteful number, since it uses less digits than its factorization.

30734572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466 (or 2447 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 30734572 is about 5543.8769827622. The cubic root of 30734572 is about 313.2389238226.

The spelling of 30734572 in words is "thirty million, seven hundred thirty-four thousand, five hundred seventy-two".