4401989555 has 16 divisors (see below), whose sum is σ = 5338368288. Its totient is φ = 3484320000.

The previous prime is 4401989549. The next prime is 4401989569. The reversal of 4401989555 is 5559891044.

It is not a de Polignac number, because 4401989555 - 2¹⁴ = 4401973171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1230920 + ... + 1234490.

It is an arithmetic number, because the mean of its divisors is an integer number (333648018).

Almost surely, 2^4401989555 is an apocalyptic number.

4401989555 is a deficient number, since it is larger than the sum of its proper divisors (936378733).

4401989555 is a wasteful number, since it uses less digits than its factorization.

4401989555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118.

The product of its (nonzero) digits is 1296000, while the sum is 50.

The square root of 4401989555 is about 66347.4909472845. The cubic root of 4401989555 is about 1638.8894865194.

The spelling of 4401989555 in words is "four billion, four hundred one million, nine hundred eighty-nine thousand, five hundred fifty-five".