204069090 has 32 divisors (see below), whose sum is σ = 490634496. Its totient is φ = 54321920.

The previous prime is 204069083. The next prime is 204069109. The reversal of 204069090 is 90960402.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 in 15 ways as a sum of consecutive naturals, for example, 12055 + ... + 23525.

It is an arithmetic number, because the mean of its divisors is an integer number (15332328).

Almost surely, 2^204069090 is an apocalyptic number.

204069090 is an abundant number, since it is smaller than the sum of its proper divisors (286565406).

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

204069090 is a wasteful number, since it uses less digits than its factorization.

204069090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12074.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 204069090 is about 14285.2752861119. The cubic root of 204069090 is about 588.7429811506.

The spelling of 204069090 in words is "two hundred four million, sixty-nine thousand, ninety".