204020455 has 8 divisors (see below), whose sum is σ = 252722304. Its totient is φ = 157951200.

The previous prime is 204020449. The next prime is 204020459. The reversal of 204020455 is 554020402.

204020455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 204020455 - 2²¹ = 201923303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204020459) 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, 657976 + ... + 658285.

It is an arithmetic number, because the mean of its divisors is an integer number (31590288).

Almost surely, 2^204020455 is an apocalyptic number.

204020455 is a deficient number, since it is larger than the sum of its proper divisors (48701849).

204020455 is a wasteful number, since it uses less digits than its factorization.

204020455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316297.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 204020455 is about 14283.5729073646. The cubic root of 204020455 is about 588.6962064857.

Adding to 204020455 its reverse (554020402), we get a palindrome (758040857).

The spelling of 204020455 in words is "two hundred four million, twenty thousand, four hundred fifty-five".