204196090 has 32 divisors (see below), whose sum is σ = 421617024. Its totient is φ = 69750720.

The previous prime is 204196087. The next prime is 204196099. The reversal of 204196090 is 90691402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (204196099) 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, 14125 + ... + 24655.

It is an arithmetic number, because the mean of its divisors is an integer number (13175532).

Almost surely, 2^204196090 is an apocalyptic number.

204196090 is an abundant number, since it is smaller than the sum of its proper divisors (217420934).

204196090 is a wasteful number, since it uses less digits than its factorization.

204196090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10822.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 204196090 is about 14289.7197313313. The cubic root of 204196090 is about 588.8650882487.

The spelling of 204196090 in words is "two hundred four million, one hundred ninety-six thousand, ninety".