304120000 has 70 divisors (see below), whose sum is σ = 754217948. Its totient is φ = 121632000.

The previous prime is 304119979. The next prime is 304120009. The reversal of 304120000 is 21403.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (304120009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36199 + ... + 43801.

Almost surely, 2^304120000 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 304120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377108974).

304120000 is an abundant number, since it is smaller than the sum of its proper divisors (450097948).

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

304120000 is an frugal number, since it uses more digits than its factorization.

304120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7635 (or 7610 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 304120000 is about 17439.0366706421. The cubic root of 304120000 is about 672.4835427582.

Adding to 304120000 its reverse (21403), we get a palindrome (304141403).

The spelling of 304120000 in words is "three hundred four million, one hundred twenty thousand".