204030993 has 8 divisors (see below), whose sum is σ = 272372800. Its totient is φ = 135854928.

The previous prime is 204030989. The next prime is 204031039. The reversal of 204030993 is 399030402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204030993 - 2² = 204030989 is a prime.

It is a super-2 number, since 2×204030993² = 83257292209132098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204030993.

It is not an unprimeable number, because it can be changed into a prime (204030943) 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, 38533 + ... + 43506.

It is an arithmetic number, because the mean of its divisors is an integer number (34046600).

Almost surely, 2^204030993 is an apocalyptic number.

It is an amenable number.

204030993 is a deficient number, since it is larger than the sum of its proper divisors (68341807).

204030993 is an equidigital number, since it uses as much as digits as its factorization.

204030993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82871.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 204030993 is about 14283.9417878959. The cubic root of 204030993 is about 588.7063420280.

It can be divided in two parts, 2040309 and 93, that added together give a palindrome (2040402).

The spelling of 204030993 in words is "two hundred four million, thirty thousand, nine hundred ninety-three".