204401154 has 16 divisors (see below), whose sum is σ = 418773600. Its totient is φ = 66471840.

The previous prime is 204401147. The next prime is 204401159. The reversal of 204401154 is 451104402.

It is a happy number.

204401154 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 204401154.

It is not an unprimeable number, because it can be changed into a prime (204401159) 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, 415204 + ... + 415695.

It is an arithmetic number, because the mean of its divisors is an integer number (26173350).

Almost surely, 2^204401154 is an apocalyptic number.

204401154 is an abundant number, since it is smaller than the sum of its proper divisors (214372446).

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

204401154 is a wasteful number, since it uses less digits than its factorization.

204401154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830945.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 204401154 is about 14296.8931590049. The cubic root of 204401154 is about 589.0621449606.

Adding to 204401154 its reverse (451104402), we get a palindrome (655505556).

The spelling of 204401154 in words is "two hundred four million, four hundred one thousand, one hundred fifty-four".