30706732 has 24 divisors (see below), whose sum is σ = 62669600. Its totient is φ = 13159440.

The previous prime is 30706723. The next prime is 30706751. The reversal of 30706732 is 23760703.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 30706732.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9819 + ... + 12562.

Almost surely, 2^30706732 is an apocalyptic number.

It is an amenable number.

30706732 is an abundant number, since it is smaller than the sum of its proper divisors (31962868).

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

30706732 is a wasteful number, since it uses less digits than its factorization.

30706732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22406 (or 22390 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 30706732 is about 5541.3655356780. The cubic root of 30706732 is about 313.1443158563.

The spelling of 30706732 in words is "thirty million, seven hundred six thousand, seven hundred thirty-two".