4402989 has 12 divisors (see below), whose sum is σ = 6386172. Its totient is φ = 2923200.

The previous prime is 4402987. The next prime is 4402991. The reversal of 4402989 is 9892044.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4402987) and next prime (4402991).

It can be written as a sum of positive squares in 2 ways, for example, as 1010025 + 3392964 = 1005^2 + 1842^2 .

It is not a de Polignac number, because 4402989 - 2¹ = 4402987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1659 + ... + 3399.

It is an arithmetic number, because the mean of its divisors is an integer number (532181).

Almost surely, 2^4402989 is an apocalyptic number.

It is an amenable number.

4402989 is a deficient number, since it is larger than the sum of its proper divisors (1983183).

4402989 is a wasteful number, since it uses less digits than its factorization.

4402989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4402989 is about 2098.3300503019. The cubic root of 4402989 is about 163.9013510436.

The spelling of 4402989 in words is "four million, four hundred two thousand, nine hundred eighty-nine".