402420044044 has 12 divisors (see below), whose sum is σ = 704522889504. Its totient is φ = 201127789904.

The previous prime is 402420044041. The next prime is 402420044063. The reversal of 402420044044 is 440440024204.

It is not an unprimeable number, because it can be changed into a prime (402420044041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20547019 + ... + 20566594.

It is an arithmetic number, because the mean of its divisors is an integer number (58710240792).

Almost surely, 2^402420044044 is an apocalyptic number.

It is an amenable number.

402420044044 is a deficient number, since it is larger than the sum of its proper divisors (302102845460).

402420044044 is a wasteful number, since it uses less digits than its factorization.

402420044044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41116064 (or 41116062 counting only the distinct ones).

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

Adding to 402420044044 its reverse (440440024204), we get a palindrome (842860068248).

The spelling of 402420044044 in words is "four hundred two billion, four hundred twenty million, forty-four thousand, forty-four".