420144944 has 10 divisors (see below), whose sum is σ = 814030860. Its totient is φ = 210072464.

The previous prime is 420144941. The next prime is 420144971. The reversal of 420144944 is 449441024.

It is a self number, because there is not a number n which added to its sum of digits gives 420144944.

It is not an unprimeable number, because it can be changed into a prime (420144941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13129514 + ... + 13129545.

It is an arithmetic number, because the mean of its divisors is an integer number (81403086).

Almost surely, 2^420144944 is an apocalyptic number.

It is an amenable number.

420144944 is a deficient number, since it is larger than the sum of its proper divisors (393885916).

420144944 is a wasteful number, since it uses less digits than its factorization.

420144944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26259067 (or 26259061 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 420144944 is about 20497.4374983801. The cubic root of 420144944 is about 748.9733769978.

Adding to 420144944 its reverse (449441024), we get a palindrome (869585968).

The spelling of 420144944 in words is "four hundred twenty million, one hundred forty-four thousand, nine hundred forty-four".