7444989 has 24 divisors (see below), whose sum is σ = 11142144. Its totient is φ = 4788000.

The previous prime is 7444981. The next prime is 7444993. The reversal of 7444989 is 9894447.

It is not a de Polignac number, because 7444989 - 2³ = 7444981 is a prime.

It is a super-2 number, since 2×7444989² = 110855722420242, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7444981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38884 + ... + 39074.

It is an arithmetic number, because the mean of its divisors is an integer number (464256).

Almost surely, 2^7444989 is an apocalyptic number.

It is an amenable number.

7444989 is a deficient number, since it is larger than the sum of its proper divisors (3697155).

7444989 is a wasteful number, since it uses less digits than its factorization.

7444989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 326 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7444989 is about 2728.5507142071. The cubic root of 7444989 is about 195.2636276524.

The spelling of 7444989 in words is "seven million, four hundred forty-four thousand, nine hundred eighty-nine".