30720652 has 12 divisors (see below), whose sum is σ = 54084240. Its totient is φ = 15268016.

The previous prime is 30720647. The next prime is 30720667. The reversal of 30720652 is 25602703.

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 3 ways as a sum of consecutive naturals, for example, 22327 + ... + 23662.

It is an arithmetic number, because the mean of its divisors is an integer number (4507020).

Almost surely, 2^30720652 is an apocalyptic number.

It is an amenable number.

30720652 is a deficient number, since it is larger than the sum of its proper divisors (23363588).

30720652 is a wasteful number, since it uses less digits than its factorization.

30720652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46160 (or 46158 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 30720652 is about 5542.6214014670. The cubic root of 30720652 is about 313.1916269842.

The spelling of 30720652 in words is "thirty million, seven hundred twenty thousand, six hundred fifty-two".