204080142 has 32 divisors (see below), whose sum is σ = 469181952. Its totient is φ = 57969504.

The previous prime is 204080141. The next prime is 204080213. The reversal of 204080142 is 241080402.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204080141) 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, 6778 + ... + 21309.

It is an arithmetic number, because the mean of its divisors is an integer number (14661936).

Almost surely, 2^204080142 is an apocalyptic number.

204080142 is an abundant number, since it is smaller than the sum of its proper divisors (265101810).

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

204080142 is a wasteful number, since it uses less digits than its factorization.

204080142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28272.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 204080142 is about 14285.6621127619. The cubic root of 204080142 is about 588.7536093648.

The spelling of 204080142 in words is "two hundred four million, eighty thousand, one hundred forty-two".