30804906 has 48 divisors (see below), whose sum is σ = 68410944. Its totient is φ = 9240000.

The previous prime is 30804887. The next prime is 30804911. The reversal of 30804906 is 60940803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109486 + ... + 109766.

It is an arithmetic number, because the mean of its divisors is an integer number (1425228).

Almost surely, 2^30804906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30804906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34205472).

30804906 is an abundant number, since it is smaller than the sum of its proper divisors (37606038).

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

30804906 is a wasteful number, since it uses less digits than its factorization.

30804906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30804906 is about 5550.2167525242. The cubic root of 30804906 is about 313.4776838532.

The spelling of 30804906 in words is "thirty million, eight hundred four thousand, nine hundred six".