30725752 has 8 divisors (see below), whose sum is σ = 57610800. Its totient is φ = 15362872.

The previous prime is 30725741. The next prime is 30725753. The reversal of 30725752 is 25752703.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30725753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920352 + ... + 1920367.

It is an arithmetic number, because the mean of its divisors is an integer number (7201350).

Almost surely, 2^30725752 is an apocalyptic number.

It is an amenable number.

30725752 is a deficient number, since it is larger than the sum of its proper divisors (26885048).

30725752 is a wasteful number, since it uses less digits than its factorization.

30725752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840725 (or 3840721 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 30725752 is about 5543.0814534878. The cubic root of 30725752 is about 313.2089572253.

The spelling of 30725752 in words is "thirty million, seven hundred twenty-five thousand, seven hundred fifty-two".