304072120 has 64 divisors (see below), whose sum is σ = 749541600. Its totient is φ = 110100480.

The previous prime is 304072117. The next prime is 304072127. The reversal of 304072120 is 21270403.

It is a super-2 number, since 2×304072120² = 184919708322588800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304072127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111736 + ... + 114424.

Almost surely, 2^304072120 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 304072120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374770800).

304072120 is an abundant number, since it is smaller than the sum of its proper divisors (445469480).

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

304072120 is a wasteful number, since it uses less digits than its factorization.

304072120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2964 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 304072120 is about 17437.6638343558. The cubic root of 304072120 is about 672.4482494508.

The spelling of 304072120 in words is "three hundred four million, seventy-two thousand, one hundred twenty".