305967222 has 48 divisors (see below), whose sum is σ = 761267520. Its totient is φ = 87836400.

The previous prime is 305967209. The next prime is 305967247. The reversal of 305967222 is 222769503.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36904 + ... + 44427.

It is an arithmetic number, because the mean of its divisors is an integer number (15859740).

Almost surely, 2^305967222 is an apocalyptic number.

305967222 is an abundant number, since it is smaller than the sum of its proper divisors (455300298).

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

305967222 is a wasteful number, since it uses less digits than its factorization.

305967222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81369 (or 81366 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 305967222 is about 17491.9187626744. The cubic root of 305967222 is about 673.8423482266.

The spelling of 305967222 in words is "three hundred five million, nine hundred sixty-seven thousand, two hundred twenty-two".