4444200820 has 12 divisors (see below), whose sum is σ = 9332821764. Its totient is φ = 1777680320.

The previous prime is 4444200769. The next prime is 4444200821. The reversal of 4444200820 is 280024444.

It can be written as a sum of positive squares in 2 ways, for example, as 3416870116 + 1027330704 = 58454^2 + 32052^2 .

It is a super-3 number, since 3×4444200820³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444200821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111105001 + ... + 111105040.

It is an arithmetic number, because the mean of its divisors is an integer number (777735147).

Almost surely, 2^4444200820 is an apocalyptic number.

It is an amenable number.

4444200820 is an abundant number, since it is smaller than the sum of its proper divisors (4888620944).

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

4444200820 is a wasteful number, since it uses less digits than its factorization.

4444200820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222210050 (or 222210048 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 4444200820 is about 66664.8394582932. The cubic root of 4444200820 is about 1644.1113408607. Note that the first 3 decimals are identical.

The spelling of 4444200820 in words is "four billion, four hundred forty-four million, two hundred thousand, eight hundred twenty".