306490422 has 32 divisors (see below), whose sum is σ = 701740800. Its totient is φ = 87419808.

The previous prime is 306490421. The next prime is 306490439. The reversal of 306490422 is 224094603.

It is a self number, because there is not a number n which added to its sum of digits gives 306490422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306490421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20104 + ... + 31892.

It is an arithmetic number, because the mean of its divisors is an integer number (21929400).

Almost surely, 2^306490422 is an apocalyptic number.

306490422 is an abundant number, since it is smaller than the sum of its proper divisors (395250378).

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

306490422 is a wasteful number, since it uses less digits than its factorization.

306490422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12420.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 306490422 is about 17506.8678523601. The cubic root of 306490422 is about 674.2262167453.

The spelling of 306490422 in words is "three hundred six million, four hundred ninety thousand, four hundred twenty-two".