304082172 has 72 divisors (see below), whose sum is σ = 806900640. Its totient is φ = 96370560.

The previous prime is 304082167. The next prime is 304082189. The reversal of 304082172 is 271280403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148854 + ... + 150882.

Almost surely, 2^304082172 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 304082172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403450320).

304082172 is an abundant number, since it is smaller than the sum of its proper divisors (502818468).

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

304082172 is a wasteful number, since it uses less digits than its factorization.

304082172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 304082172 is about 17437.9520586564. The cubic root of 304082172 is about 672.4556592886.

The spelling of 304082172 in words is "three hundred four million, eighty-two thousand, one hundred seventy-two".