30505732 has 12 divisors (see below), whose sum is σ = 53464320. Its totient is φ = 15230216.

The previous prime is 30505693. The next prime is 30505757. The reversal of 30505732 is 23750503.

It is a junction number, because it is equal to n+sod(n) for n = 30505697 and 30505706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2428 + ... + 8179.

It is an arithmetic number, because the mean of its divisors is an integer number (4455360).

Almost surely, 2^30505732 is an apocalyptic number.

It is an amenable number.

30505732 is a deficient number, since it is larger than the sum of its proper divisors (22958588).

30505732 is a wasteful number, since it uses less digits than its factorization.

30505732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330 (or 11328 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 30505732 is about 5523.1994351101. The cubic root of 30505732 is about 312.4595599936.

The spelling of 30505732 in words is "thirty million, five hundred five thousand, seven hundred thirty-two".