305448420 has 24 divisors (see below), whose sum is σ = 855255744. Its totient is φ = 81452896.

The previous prime is 305448419. The next prime is 305448439. The reversal of 305448420 is 24844503.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2545344 + ... + 2545463.

It is an arithmetic number, because the mean of its divisors is an integer number (35635656).

Almost surely, 2^305448420 is an apocalyptic number.

305448420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305448420 is an abundant number, since it is smaller than the sum of its proper divisors (549807324).

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

305448420 is a wasteful number, since it uses less digits than its factorization.

305448420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090819 (or 5090817 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 305448420 is about 17477.0827085072. The cubic root of 305448420 is about 673.4612741449.

The spelling of 305448420 in words is "three hundred five million, four hundred forty-eight thousand, four hundred twenty".