200402444424456 has 24 divisors (see below), whose sum is σ = 542756620316430. Its totient is φ = 66800814808128.

The previous prime is 200402444424401. The next prime is 200402444424473. The reversal of 200402444424456 is 654424444204002.

It can be written as a sum of positive squares in only one way, i.e., 190961168076900 + 9441276347556 = 13818870^2 + 3072666^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×200402444424456² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1391683641765 + ... + 1391683641908.

Almost surely, 2^{200402444424456} is an apocalyptic number.

It is an amenable number.

200402444424456 is an abundant number, since it is smaller than the sum of its proper divisors (342354175891974).

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

200402444424456 is a wasteful number, since it uses less digits than its factorization.

200402444424456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783367283685 (or 2783367283678 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 45.

Adding to 200402444424456 its reverse (654424444204002), we get a palindrome (854826888628458).

The spelling of 200402444424456 in words is "two hundred trillion, four hundred two billion, four hundred forty-four million, four hundred twenty-four thousand, four hundred fifty-six".