4402404020 has 36 divisors (see below), whose sum is σ = 10754446500. Its totient is φ = 1509395328.

The previous prime is 4402404001. The next prime is 4402404049. The reversal of 4402404020 is 204042044.

It can be written as a sum of positive squares in 2 ways, for example, as 2709410704 + 1692993316 = 52052^2 + 41146^2 .

It is a super-2 number, since 2×4402404020² = 38762322310624320800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4402403983 and 4402404001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2245145 + ... + 2247104.

It is an arithmetic number, because the mean of its divisors is an integer number (298734625).

Almost surely, 2^4402404020 is an apocalyptic number.

It is an amenable number.

4402404020 is an abundant number, since it is smaller than the sum of its proper divisors (6352042480).

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

4402404020 is a wasteful number, since it uses less digits than its factorization.

4402404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492272 (or 4492263 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4402404020 is about 66350.6143151667. The cubic root of 4402404020 is about 1638.9409209148.

Adding to 4402404020 its reverse (204042044), we get a palindrome (4606446064).

The spelling of 4402404020 in words is "four billion, four hundred two million, four hundred four thousand, twenty".