204022040 has 32 divisors (see below), whose sum is σ = 463790880. Its totient is φ = 80765952.

The previous prime is 204022001. The next prime is 204022043. The reversal of 204022040 is 40220402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204022043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22412 + ... + 30171.

It is an arithmetic number, because the mean of its divisors is an integer number (14493465).

Almost surely, 2^204022040 is an apocalyptic number.

204022040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204022040 is an abundant number, since it is smaller than the sum of its proper divisors (259768840).

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

204022040 is a wasteful number, since it uses less digits than its factorization.

204022040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52691 (or 52687 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 204022040 is about 14283.6283905736. The cubic root of 204022040 is about 588.6977309752.

Adding to 204022040 its reverse (40220402), we get a palindrome (244242442).

The spelling of 204022040 in words is "two hundred four million, twenty-two thousand, forty".