4428668244 has 240 divisors, whose sum is σ = 14040467840. Its totient is φ = 1057985280.

The previous prime is 4428668243. The next prime is 4428668263.

4428668244 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×4428668244² = 39226204830828087072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4428668193 and 4428668202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428668243) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15987834 + ... + 15988110.

Almost surely, 2^4428668244 is an apocalyptic number.

4428668244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4428668244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7020233920).

4428668244 is an abundant number, since it is smaller than the sum of its proper divisors (9611799596).

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

4428668244 is a wasteful number, since it uses less digits than its factorization.

4428668244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 313 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 48.

The square root of 4428668244 is about 66548.2399767267. The cubic root of 4428668244 is about 1642.1937037415.

The spelling of 4428668244 in words is "four billion, four hundred twenty-eight million, six hundred sixty-eight thousand, two hundred forty-four".