204354140 has 12 divisors (see below), whose sum is σ = 429143736. Its totient is φ = 81741648.

The previous prime is 204354131. The next prime is 204354151. The reversal of 204354140 is 41453402.

It is a super-2 number, since 2×204354140² = 83521229070279200, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5108834 + ... + 5108873.

It is an arithmetic number, because the mean of its divisors is an integer number (35761978).

Almost surely, 2^204354140 is an apocalyptic number.

204354140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204354140 is an abundant number, since it is smaller than the sum of its proper divisors (224789596).

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

204354140 is a wasteful number, since it uses less digits than its factorization.

204354140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217716 (or 10217714 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 204354140 is about 14295.2488610727. The cubic root of 204354140 is about 589.0169784001.

The spelling of 204354140 in words is "two hundred four million, three hundred fifty-four thousand, one hundred forty".