204420130 has 16 divisors (see below), whose sum is σ = 380644920. Its totient is φ = 78948352.

The previous prime is 204420109. The next prime is 204420143. The reversal of 204420130 is 31024402.

It can be written as a sum of positive squares in 4 ways, for example, as 191739409 + 12680721 = 13847^2 + 3561^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352159 + ... + 352738.

Almost surely, 2^204420130 is an apocalyptic number.

204420130 is a deficient number, since it is larger than the sum of its proper divisors (176224790).

204420130 is a wasteful number, since it uses less digits than its factorization.

204420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704933.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 204420130 is about 14297.5567842901. The cubic root of 204420130 is about 589.0803733270.

Adding to 204420130 its reverse (31024402), we get a palindrome (235444532).

The spelling of 204420130 in words is "two hundred four million, four hundred twenty thousand, one hundred thirty".