4444888920 has 64 divisors (see below), whose sum is σ = 13914443520. Its totient is φ = 1133768064.

The previous prime is 4444888913. The next prime is 4444888927. The reversal of 4444888920 is 298884444.

It is an interprime number because it is at equal distance from previous prime (4444888913) and next prime (4444888927).

It is a super-2 number, since 2×4444888920² = 39514075022277532800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444888927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802474 + ... + 807993.

It is an arithmetic number, because the mean of its divisors is an integer number (217413180).

Almost surely, 2^4444888920 is an apocalyptic number.

4444888920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444888920 is an abundant number, since it is smaller than the sum of its proper divisors (9469554600).

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

4444888920 is a wasteful number, since it uses less digits than its factorization.

4444888920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610504 (or 1610500 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

The square root of 4444888920 is about 66670.0001499925. Note that the first 3 decimals coincide. The cubic root of 4444888920 is about 1644.1961896091.

The spelling of 4444888920 in words is "four billion, four hundred forty-four million, eight hundred eighty-eight thousand, nine hundred twenty".