305422130 has 32 divisors (see below), whose sum is σ = 593233200. Its totient is φ = 112545792.

The previous prime is 305422123. The next prime is 305422189. The reversal of 305422130 is 31224503.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 38328481 + 267093649 = 6191^2 + 16343^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71906 + ... + 76034.

Almost surely, 2^305422130 is an apocalyptic number.

305422130 is a deficient number, since it is larger than the sum of its proper divisors (287811070).

305422130 is a wasteful number, since it uses less digits than its factorization.

305422130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 305422130 is about 17476.3305645092. The cubic root of 305422130 is about 673.4419519465.

Adding to 305422130 its reverse (31224503), we get a palindrome (336646633).

The spelling of 305422130 in words is "three hundred five million, four hundred twenty-two thousand, one hundred thirty".