204644401 has 8 divisors (see below), whose sum is σ = 222070464. Its totient is φ = 187458960.

The previous prime is 204644399. The next prime is 204644413. The reversal of 204644401 is 104446402.

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

It is not a de Polignac number, because 204644401 - 2¹ = 204644399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204644431) 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, 58381 + ... + 61786.

It is an arithmetic number, because the mean of its divisors is an integer number (27758808).

Almost surely, 2^204644401 is an apocalyptic number.

It is an amenable number.

204644401 is a deficient number, since it is larger than the sum of its proper divisors (17426063).

204644401 is a wasteful number, since it uses less digits than its factorization.

204644401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120311.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 204644401 is about 14305.3976176826. The cubic root of 204644401 is about 589.2957228941.

The spelling of 204644401 in words is "two hundred four million, six hundred forty-four thousand, four hundred one".