305422722 has 96 divisors (see below), whose sum is σ = 764786880. Its totient is φ = 87212160.

The previous prime is 305422709. The next prime is 305422723. The reversal of 305422722 is 227224503.

It is a super-2 number, since 2×305422722² = 186566078227778568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (305422723) 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, 246288 + ... + 247524.

It is an arithmetic number, because the mean of its divisors is an integer number (7966530).

Almost surely, 2^305422722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305422722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382393440).

305422722 is an abundant number, since it is smaller than the sum of its proper divisors (459364158).

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

305422722 is a wasteful number, since it uses less digits than its factorization.

305422722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 305422722 is about 17476.3475016950. The cubic root of 305422722 is about 673.4423870573.

The spelling of 305422722 in words is "three hundred five million, four hundred twenty-two thousand, seven hundred twenty-two".