4444388890 has 16 divisors (see below), whose sum is σ = 8073295560. Its totient is φ = 1761445440.

The previous prime is 4444388887. The next prime is 4444388891. The reversal of 4444388890 is 988834444.

It can be written as a sum of positive squares in 4 ways, for example, as 4343205409 + 101183481 = 65903^2 + 10059^2 .

It is not an unprimeable number, because it can be changed into a prime (4444388891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2037621 + ... + 2039800.

Almost surely, 2^4444388890 is an apocalyptic number.

4444388890 is a deficient number, since it is larger than the sum of its proper divisors (3628906670).

4444388890 is a wasteful number, since it uses less digits than its factorization.

4444388890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077537.

The product of its (nonzero) digits is 3538944, while the sum is 52.

The square root of 4444388890 is about 66666.2500070313. The cubic root of 4444388890 is about 1644.1345324064.

The spelling of 4444388890 in words is "four billion, four hundred forty-four million, three hundred eighty-eight thousand, eight hundred ninety".