305444055420 has 144 divisors (see below), whose sum is σ = 1059363002880. Its totient is φ = 69783458688.

The previous prime is 305444055419. The next prime is 305444055421. The reversal of 305444055420 is 24550444503.

305444055420 is a `hidden beast` number, since 3 + 0 + 5 + 44 + 40 + 554 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (305444055419) and next prime (305444055421).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305444055421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2720761 + ... + 2830799.

It is an arithmetic number, because the mean of its divisors is an integer number (7356687520).

Almost surely, 2^305444055420 is an apocalyptic number.

305444055420 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 305444055420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529681501440).

305444055420 is an abundant number, since it is smaller than the sum of its proper divisors (753918947460).

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

305444055420 is a wasteful number, since it uses less digits than its factorization.

305444055420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112264 (or 112259 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 305444055420 its reverse (24550444503), we get a palindrome (329994499923).

The spelling of 305444055420 in words is "three hundred five billion, four hundred forty-four million, fifty-five thousand, four hundred twenty".