304155420 has 96 divisors (see below), whose sum is σ = 899942400. Its totient is φ = 76541184.

The previous prime is 304155419. The next prime is 304155437. The reversal of 304155420 is 24551403.

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, 545782 + ... + 546338.

It is an arithmetic number, because the mean of its divisors is an integer number (9374400).

Almost surely, 2^304155420 is an apocalyptic number.

304155420 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 304155420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449971200).

304155420 is an abundant number, since it is smaller than the sum of its proper divisors (595786980).

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

304155420 is a wasteful number, since it uses less digits than its factorization.

304155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 304155420 is about 17440.0521788210. The cubic root of 304155420 is about 672.5096491662.

The spelling of 304155420 in words is "three hundred four million, one hundred fifty-five thousand, four hundred twenty".