30219804 has 60 divisors (see below), whose sum is σ = 83175400. Its totient is φ = 9541152.

The previous prime is 30219803. The next prime is 30219809. The reversal of 30219804 is 40891203.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30219803) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3702 + ... + 8610.

Almost surely, 2^30219804 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 30219804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41587700).

30219804 is an abundant number, since it is smaller than the sum of its proper divisors (52955596).

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

30219804 is a wasteful number, since it uses less digits than its factorization.

30219804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944 (or 4933 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30219804 is about 5497.2542237011. The cubic root of 30219804 is about 311.4802737797.

The spelling of 30219804 in words is "thirty million, two hundred nineteen thousand, eight hundred four".