30864992 has 12 divisors (see below), whose sum is σ = 60765516. Its totient is φ = 15432480.

The previous prime is 30864991. The next prime is 30864997. The reversal of 30864992 is 29946803.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30864991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482234 + ... + 482297.

It is an arithmetic number, because the mean of its divisors is an integer number (5063793).

Almost surely, 2^30864992 is an apocalyptic number.

30864992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30864992 is a deficient number, since it is larger than the sum of its proper divisors (29900524).

30864992 is an equidigital number, since it uses as much as digits as its factorization.

30864992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964541 (or 964533 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 30864992 is about 5555.6270573177. The cubic root of 30864992 is about 313.6813677173.

The spelling of 30864992 in words is "thirty million, eight hundred sixty-four thousand, nine hundred ninety-two".