204145662 has 24 divisors (see below), whose sum is σ = 474951816. Its totient is φ = 58327248.

The previous prime is 204145649. The next prime is 204145663. The reversal of 204145662 is 266541402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204145663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346893 + ... + 347480.

It is an arithmetic number, because the mean of its divisors is an integer number (19789659).

Almost surely, 2^204145662 is an apocalyptic number.

204145662 is an abundant number, since it is smaller than the sum of its proper divisors (270806154).

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

204145662 is a wasteful number, since it uses less digits than its factorization.

204145662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694392 (or 694385 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 204145662 is about 14287.9551371076. The cubic root of 204145662 is about 588.8166091397.

The spelling of 204145662 in words is "two hundred four million, one hundred forty-five thousand, six hundred sixty-two".