304022000 has 80 divisors (see below), whose sum is σ = 745827264. Its totient is φ = 119840000.

The previous prime is 304021973. The next prime is 304022029. The reversal of 304022000 is 220403.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140930 + ... + 143070.

Almost surely, 2^304022000 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 304022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372913632).

304022000 is an abundant number, since it is smaller than the sum of its proper divisors (441805264).

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

304022000 is a wasteful number, since it uses less digits than its factorization.

304022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 304022000 is about 17436.2266560171. The cubic root of 304022000 is about 672.4113010253.

Adding to 304022000 its reverse (220403), we get a palindrome (304242403).

The spelling of 304022000 in words is "three hundred four million, twenty-two thousand".