204984489402 has 128 divisors (see below), whose sum is σ = 570898022400. Its totient is φ = 52963761600.

The previous prime is 204984489383. The next prime is 204984489419.

It is a happy number.

204984489402 is a `hidden beast` number, since 2 + 0 + 49 + 84 + 489 + 40 + 2 = 666.

204984489402 is nontrivially palindromic in base 10.

204984489402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 665124 + ... + 923232.

It is an arithmetic number, because the mean of its divisors is an integer number (4460140800).

Almost surely, 2^204984489402 is an apocalyptic number.

204984489402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 204984489402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285449011200).

204984489402 is an abundant number, since it is smaller than the sum of its proper divisors (365913532998).

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

204984489402 is a wasteful number, since it uses less digits than its factorization.

204984489402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258329 (or 258323 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 204984489402 in words is "two hundred four billion, nine hundred eighty-four million, four hundred eighty-nine thousand, four hundred two".