204286040 has 64 divisors (see below), whose sum is σ = 526858560. Its totient is φ = 69834240.

The previous prime is 204286031. The next prime is 204286057. The reversal of 204286040 is 40682402.

It is a super-2 number, since 2×204286040² = 83465572277763200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117014 + ... + 118746.

It is an arithmetic number, because the mean of its divisors is an integer number (8232165).

Almost surely, 2^204286040 is an apocalyptic number.

204286040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204286040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263429280).

204286040 is an abundant number, since it is smaller than the sum of its proper divisors (322572520).

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

204286040 is a wasteful number, since it uses less digits than its factorization.

204286040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 204286040 is about 14292.8667523349. The cubic root of 204286040 is about 588.9515421387.

The spelling of 204286040 in words is "two hundred four million, two hundred eighty-six thousand, forty".