4420240400420 has 48 divisors (see below), whose sum is σ = 9999444092400. Its totient is φ = 1631615225856.

The previous prime is 4420240400399. The next prime is 4420240400467. The reversal of 4420240400420 is 240040420244.

It can be written as a sum of positive squares in 8 ways, for example, as 2355782940736 + 2064457459684 = 1534856^2 + 1436822^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 4420240400420.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1567877 + ... + 3361356.

It is an arithmetic number, because the mean of its divisors is an integer number (208321751925).

Almost surely, 2^{4420240400420} is an apocalyptic number.

It is an amenable number.

4420240400420 is an abundant number, since it is smaller than the sum of its proper divisors (5579203691980).

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

4420240400420 is a wasteful number, since it uses less digits than its factorization.

4420240400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932704 (or 4932702 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 4420240400420 its reverse (240040420244), we get a palindrome (4660280820664).

The spelling of 4420240400420 in words is "four trillion, four hundred twenty billion, two hundred forty million, four hundred thousand, four hundred twenty".