204060402 has 162 divisors, whose sum is σ = 572380263. Its totient is φ = 52363584.

The previous prime is 204060377. The next prime is 204060431.

Added to its reverse (204060402) it gives a square (408120804 = 20202²).

204060402 is a `hidden beast` number, since 20 + 40 + 604 + 0 + 2 = 666.

204060402 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 5 ways, for example, as 115154361 + 88906041 = 10731^2 + 9429^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 5515128 + ... + 5515164.

Almost surely, 2^204060402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204060402

204060402 is an abundant number, since it is smaller than the sum of its proper divisors (368319861).

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

204060402 is a wasteful number, since it uses less digits than its factorization.

204060402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 204060402 is about 14284.9711935306. The cubic root of 204060402 is about 588.7346260202.

Multiplying 204060402 by its sum of digits (18), we get a square (3673087236 = 60606²).

204060402 divided by its sum of digits (18) gives a square (11336689 = 3367²).

The spelling of 204060402 in words is "two hundred four million, sixty thousand, four hundred two".