304485000 has 160 divisors (see below), whose sum is σ = 971688960. Its totient is φ = 79456000.

The previous prime is 304484993. The next prime is 304485001. The reversal of 304485000 is 584403.

It is a happy number.

It is a super-2 number, since 2×304485000² = 185422230450000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (304485001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 794809 + ... + 795191.

It is an arithmetic number, because the mean of its divisors is an integer number (6073056).

Almost surely, 2^304485000 is an apocalyptic number.

304485000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304485000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485844480).

304485000 is an abundant number, since it is smaller than the sum of its proper divisors (667203960).

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

304485000 is a wasteful number, since it uses less digits than its factorization.

304485000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 304485000 is about 17449.4985601306. The cubic root of 304485000 is about 672.7524698932.

The spelling of 304485000 in words is "three hundred four million, four hundred eighty-five thousand".