30734075 has 12 divisors (see below), whose sum is σ = 38194728. Its totient is φ = 24532800.

The previous prime is 30734071. The next prime is 30734089. The reversal of 30734075 is 57043703.

It is not a de Polignac number, because 30734075 - 2² = 30734071 is a prime.

It is a super-2 number, since 2×30734075² = 1889166732211250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30734071) 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, 13199 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (3182894).

Almost surely, 2^30734075 is an apocalyptic number.

30734075 is a deficient number, since it is larger than the sum of its proper divisors (7460653).

30734075 is a wasteful number, since it uses less digits than its factorization.

30734075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 30734075 is about 5543.8321583540. The cubic root of 30734075 is about 313.2372353811.

Adding to 30734075 its reverse (57043703), we get a palindrome (87777778).

The spelling of 30734075 in words is "thirty million, seven hundred thirty-four thousand, seventy-five".