30904824 has 32 divisors (see below), whose sum is σ = 80622720. Its totient is φ = 9853536.

The previous prime is 30904817. The next prime is 30904829. The reversal of 30904824 is 42840903.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30904791 and 30904800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30904829) 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, 27442 + ... + 28545.

It is an arithmetic number, because the mean of its divisors is an integer number (2519460).

Almost surely, 2^30904824 is an apocalyptic number.

It is an amenable number.

30904824 is an abundant number, since it is smaller than the sum of its proper divisors (49717896).

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

30904824 is a wasteful number, since it uses less digits than its factorization.

30904824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56019 (or 56015 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 30904824 is about 5559.2107353472. The cubic root of 30904824 is about 313.8162474461.

The spelling of 30904824 in words is "thirty million, nine hundred four thousand, eight hundred twenty-four".