420402200463444 has 48 divisors (see below), whose sum is σ = 1039660005585600. Its totient is φ = 131761454670336.

The previous prime is 420402200463419. The next prime is 420402200463533. The reversal of 420402200463444 is 444364002204024.

It is a super-2 number, since 2×420402200463444² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1010977159 + ... + 1011392910.

It is an arithmetic number, because the mean of its divisors is an integer number (21659583449700).

Almost surely, 2^{420402200463444} is an apocalyptic number.

It is an amenable number.

420402200463444 is an abundant number, since it is smaller than the sum of its proper divisors (619257805122156).

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

420402200463444 is a wasteful number, since it uses less digits than its factorization.

420402200463444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022371112 (or 2022371110 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 420402200463444 its reverse (444364002204024), we get a palindrome (864766202667468).

The spelling of 420402200463444 in words is "four hundred twenty trillion, four hundred two billion, two hundred million, four hundred sixty-three thousand, four hundred forty-four".