4444488890 has 16 divisors (see below), whose sum is σ = 8002554408. Its totient is φ = 1777245696.

The previous prime is 4444488883. The next prime is 4444488907. The reversal of 4444488890 is 988844444.

It is a Cunningham number, because it is equal to 66667²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 4107656281 + 336832609 = 64091^2 + 18353^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33947 + ... + 100206.

Almost surely, 2^4444488890 is an apocalyptic number.

4444488890 is a deficient number, since it is larger than the sum of its proper divisors (3558065518).

4444488890 is a wasteful number, since it uses less digits than its factorization.

4444488890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137473.

The product of its (nonzero) digits is 4718592, while the sum is 53.

The square root of 4444488890 is about 66667.0000075000. Note that the first 5 decimals coincide. The cubic root of 4444488890 is about 1644.1468634770.

The spelling of 4444488890 in words is "four billion, four hundred forty-four million, four hundred eighty-eight thousand, eight hundred ninety".