305490022 has 4 divisors (see below), whose sum is σ = 458235036. Its totient is φ = 152745010.

The previous prime is 305490011. The next prime is 305490041. The reversal of 305490022 is 220094503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220094503 = 83 ⋅2651741.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76372504 + ... + 76372507.

It is an arithmetic number, because the mean of its divisors is an integer number (114558759).

Almost surely, 2^305490022 is an apocalyptic number.

305490022 is a deficient number, since it is larger than the sum of its proper divisors (152745014).

305490022 is a wasteful number, since it uses less digits than its factorization.

305490022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152745013.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 305490022 is about 17478.2728551765. The cubic root of 305490022 is about 673.4918478437.

The spelling of 305490022 in words is "three hundred five million, four hundred ninety thousand, twenty-two".