30786268 has 12 divisors (see below), whose sum is σ = 53915400. Its totient is φ = 15381872.

The previous prime is 30786263. The next prime is 30786281. The reversal of 30786268 is 86268703.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30786268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30786263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7683 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (4492950).

Almost surely, 2^30786268 is an apocalyptic number.

It is an amenable number.

30786268 is a deficient number, since it is larger than the sum of its proper divisors (23129132).

30786268 is a wasteful number, since it uses less digits than its factorization.

30786268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636 (or 5634 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 30786268 is about 5548.5374649542. The cubic root of 30786268 is about 313.4144495987.

The spelling of 30786268 in words is "thirty million, seven hundred eighty-six thousand, two hundred sixty-eight".