30713860 has 24 divisors (see below), whose sum is σ = 64615320. Its totient is φ = 12263424.

The previous prime is 30713833. The next prime is 30713869. The reversal of 30713860 is 6831703.

It can be written as a sum of positive squares in 4 ways, for example, as 66564 + 30647296 = 258^2 + 5536^2 .

It is not an unprimeable number, because it can be changed into a prime (30713869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14382 + ... + 16378.

It is an arithmetic number, because the mean of its divisors is an integer number (2692305).

Almost surely, 2^30713860 is an apocalyptic number.

It is an amenable number.

30713860 is an abundant number, since it is smaller than the sum of its proper divisors (33901460).

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

30713860 is a wasteful number, since it uses less digits than its factorization.

30713860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30713860 is about 5542.0086611264. The cubic root of 30713860 is about 313.1685442024.

The spelling of 30713860 in words is "thirty million, seven hundred thirteen thousand, eight hundred sixty".