30713960 has 32 divisors (see below), whose sum is σ = 69265800. Its totient is φ = 12257280.

The previous prime is 30713941. The next prime is 30714001. The reversal of 30713960 is 6931703.

It can be written as a sum of positive squares in 4 ways, for example, as 10982596 + 19731364 = 3314^2 + 4442^2 .

It is a congruent number.

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, 29936 + ... + 30944.

Almost surely, 2^30713960 is an apocalyptic number.

It is an amenable number.

30713960 is an abundant number, since it is smaller than the sum of its proper divisors (38551840).

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

30713960 is a wasteful number, since it uses less digits than its factorization.

30713960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781 (or 1777 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 30713960 is about 5542.0176831187. The cubic root of 30713960 is about 313.1688840796.

The spelling of 30713960 in words is "thirty million, seven hundred thirteen thousand, nine hundred sixty".