30806924 has 24 divisors (see below), whose sum is σ = 57421728. Its totient is φ = 14411520.

The previous prime is 30806887. The next prime is 30806927. The reversal of 30806924 is 42960803.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30806927) 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, 11057 + ... + 13559.

It is an arithmetic number, because the mean of its divisors is an integer number (2392572).

Almost surely, 2^30806924 is an apocalyptic number.

30806924 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30806924 is a deficient number, since it is larger than the sum of its proper divisors (26614804).

30806924 is a wasteful number, since it uses less digits than its factorization.

30806924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30806924 is about 5550.3985442489. The cubic root of 30806924 is about 313.4845289117.

The spelling of 30806924 in words is "thirty million, eight hundred six thousand, nine hundred twenty-four".