30725260 has 12 divisors (see below), whose sum is σ = 64523088. Its totient is φ = 12290096.

The previous prime is 30725251. The next prime is 30725287. The reversal of 30725260 is 6252703.

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, 768112 + ... + 768151.

It is an arithmetic number, because the mean of its divisors is an integer number (5376924).

Almost surely, 2^30725260 is an apocalyptic number.

It is an amenable number.

30725260 is an abundant number, since it is smaller than the sum of its proper divisors (33797828).

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

30725260 is a wasteful number, since it uses less digits than its factorization.

30725260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536272 (or 1536270 counting only the distinct ones).

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

The square root of 30725260 is about 5543.0370736628. The cubic root of 30725260 is about 313.2072854503.

Adding to 30725260 its reverse (6252703), we get a palindrome (36977963).

The spelling of 30725260 in words is "thirty million, seven hundred twenty-five thousand, two hundred sixty".