420044240404 has 12 divisors (see below), whose sum is σ = 738886113364. Its totient is φ = 208933922304.

The previous prime is 420044240377. The next prime is 420044240489. The reversal of 420044240404 is 404042440024.

It can be written as a sum of positive squares in 2 ways, for example, as 30852922500 + 389191317904 = 175650^2 + 623852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272048607 + ... + 272050150.

Almost surely, 2^420044240404 is an apocalyptic number.

It is an amenable number.

420044240404 is a deficient number, since it is larger than the sum of its proper divisors (318841872960).

420044240404 is a wasteful number, since it uses less digits than its factorization.

420044240404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544098954 (or 544098952 counting only the distinct ones).

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

Adding to 420044240404 its reverse (404042440024), we get a palindrome (824086680428).

The spelling of 420044240404 in words is "four hundred twenty billion, forty-four million, two hundred forty thousand, four hundred four".