30765936 has 20 divisors (see below), whose sum is σ = 79478792. Its totient is φ = 10255296.

The previous prime is 30765893. The next prime is 30765947. The reversal of 30765936 is 63956703.

It is a junction number, because it is equal to n+sod(n) for n = 30765894 and 30765903.

It is a congruent number.

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, 320431 + ... + 320526.

Almost surely, 2^30765936 is an apocalyptic number.

It is an amenable number.

30765936 is an abundant number, since it is smaller than the sum of its proper divisors (48712856).

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

30765936 is a wasteful number, since it uses less digits than its factorization.

30765936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640968 (or 640962 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 39.

The square root of 30765936 is about 5546.7049678165. The cubic root of 30765936 is about 313.3454388965.

The spelling of 30765936 in words is "thirty million, seven hundred sixty-five thousand, nine hundred thirty-six".