304704540 has 216 divisors, whose sum is σ = 1086780240. Its totient is φ = 68898816.

The previous prime is 304704527. The next prime is 304704551. The reversal of 304704540 is 45407403.

It is a super-2 number, since 2×304704540² = 185689713393223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1578684 + ... + 1578876.

It is an arithmetic number, because the mean of its divisors is an integer number (5031390).

Almost surely, 2^304704540 is an apocalyptic number.

304704540 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 304704540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543390120).

304704540 is an abundant number, since it is smaller than the sum of its proper divisors (782075700).

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

304704540 is a wasteful number, since it uses less digits than its factorization.

304704540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 304704540 is about 17455.7881517851. The cubic root of 304704540 is about 672.9141205428.

The spelling of 304704540 in words is "three hundred four million, seven hundred four thousand, five hundred forty".