304556340 has 96 divisors (see below), whose sum is σ = 970776576. Its totient is φ = 70618240.

The previous prime is 304556333. The next prime is 304556353. The reversal of 304556340 is 43655403.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 304556298 and 304556307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5149 + ... + 25211.

It is an arithmetic number, because the mean of its divisors is an integer number (10112256).

Almost surely, 2^304556340 is an apocalyptic number.

304556340 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 304556340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485388288).

304556340 is an abundant number, since it is smaller than the sum of its proper divisors (666220236).

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

304556340 is a wasteful number, since it uses less digits than its factorization.

304556340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109 (or 20107 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 304556340 is about 17451.5426252237. The cubic root of 304556340 is about 672.8050071428.

The spelling of 304556340 in words is "three hundred four million, five hundred fifty-six thousand, three hundred forty".