204214540 has 24 divisors (see below), whose sum is σ = 454077792. Its totient is φ = 76880640.

The previous prime is 204214511. The next prime is 204214541. The reversal of 204214540 is 45412402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (204214541) 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, 299976 + ... + 300655.

It is an arithmetic number, because the mean of its divisors is an integer number (18919908).

Almost surely, 2^204214540 is an apocalyptic number.

204214540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204214540 is an abundant number, since it is smaller than the sum of its proper divisors (249863252).

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

204214540 is a wasteful number, since it uses less digits than its factorization.

204214540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600657 (or 600655 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 204214540 is about 14290.3652857441. The cubic root of 204214540 is about 588.8828232172.

Adding to 204214540 its reverse (45412402), we get a palindrome (249626942).

The spelling of 204214540 in words is "two hundred four million, two hundred fourteen thousand, five hundred forty".