204402222442 has 32 divisors (see below), whose sum is σ = 346650192000. Its totient is φ = 89540337600.

The previous prime is 204402222439. The next prime is 204402222443. The reversal of 204402222442 is 244222204402.

It is a self number, because there is not a number n which added to its sum of digits gives 204402222442.

It is not an unprimeable number, because it can be changed into a prime (204402222443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49059 + ... + 641257.

It is an arithmetic number, because the mean of its divisors is an integer number (10832818500).

Almost surely, 2^204402222442 is an apocalyptic number.

204402222442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204402222442 is a deficient number, since it is larger than the sum of its proper divisors (142247969558).

204402222442 is a wasteful number, since it uses less digits than its factorization.

204402222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592782.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 204402222442 its reverse (244222204402), we get a palindrome (448624426844).

The spelling of 204402222442 in words is "two hundred four billion, four hundred two million, two hundred twenty-two thousand, four hundred forty-two".