305530028070 has 64 divisors (see below), whose sum is σ = 751698351360. Its totient is φ = 79434246528.

The previous prime is 305530028021. The next prime is 305530028071. The reversal of 305530028070 is 70820035503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305530028071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489136 + ... + 922124.

It is an arithmetic number, because the mean of its divisors is an integer number (11745286740).

Almost surely, 2^305530028070 is an apocalyptic number.

305530028070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 305530028070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375849175680).

305530028070 is an abundant number, since it is smaller than the sum of its proper divisors (446168323290).

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

305530028070 is a wasteful number, since it uses less digits than its factorization.

305530028070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433589.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 305530028070 in words is "three hundred five billion, five hundred thirty million, twenty-eight thousand, seventy".