4426989 has 8 divisors (see below), whose sum is σ = 6745920. Its totient is φ = 2529696.

The previous prime is 4426967. The next prime is 4426993. The reversal of 4426989 is 9896244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4426989 - 2⁵ = 4426957 is a prime.

It is a super-2 number, since 2×4426989² = 39196463212242, which contains 22 as substring.

4426989 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4426989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4426909) 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, 105384 + ... + 105425.

It is an arithmetic number, because the mean of its divisors is an integer number (843240).

Almost surely, 2^4426989 is an apocalyptic number.

It is an amenable number.

4426989 is a deficient number, since it is larger than the sum of its proper divisors (2318931).

4426989 is a wasteful number, since it uses less digits than its factorization.

4426989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210819.

The product of its digits is 124416, while the sum is 42.

The square root of 4426989 is about 2104.0411117656. The cubic root of 4426989 is about 164.1986117443.

The spelling of 4426989 in words is "four million, four hundred twenty-six thousand, nine hundred eighty-nine".