30390804 has 72 divisors (see below), whose sum is σ = 81667040. Its totient is φ = 9502272.

The previous prime is 30390803. The next prime is 30390817. The reversal of 30390804 is 40809303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30390803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107247 + ... + 107529.

Almost surely, 2^30390804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30390804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40833520).

30390804 is an abundant number, since it is smaller than the sum of its proper divisors (51276236).

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

30390804 is a wasteful number, since it uses less digits than its factorization.

30390804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30390804 is about 5512.7855028107. The cubic root of 30390804 is about 312.0666770710.

The spelling of 30390804 in words is "thirty million, three hundred ninety thousand, eight hundred four".