204421254 has 32 divisors (see below), whose sum is σ = 423484416. Its totient is φ = 65715360.

The previous prime is 204421249. The next prime is 204421279. The reversal of 204421254 is 452124402.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 57229 + ... + 60695.

It is an arithmetic number, because the mean of its divisors is an integer number (13233888).

Almost surely, 2^204421254 is an apocalyptic number.

204421254 is an abundant number, since it is smaller than the sum of its proper divisors (219063162).

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

204421254 is a wasteful number, since it uses less digits than its factorization.

204421254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 204421254 is about 14297.5960916512. The cubic root of 204421254 is about 589.0814530072.

Adding to 204421254 its reverse (452124402), we get a palindrome (656545656).

The spelling of 204421254 in words is "two hundred four million, four hundred twenty-one thousand, two hundred fifty-four".