4538989 has 16 divisors (see below), whose sum is σ = 5770240. Its totient is φ = 3473280.

The previous prime is 4538977. The next prime is 4538999. The reversal of 4538989 is 9898354.

It is a cyclic number.

It is not a de Polignac number, because 4538989 - 2⁵ = 4538957 is a prime.

It is a super-2 number, since 2×4538989² = 41204842284242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2017 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (360640).

Almost surely, 2^4538989 is an apocalyptic number.

It is an amenable number.

4538989 is a deficient number, since it is larger than the sum of its proper divisors (1231251).

4538989 is a wasteful number, since it uses less digits than its factorization.

4538989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its digits is 311040, while the sum is 46.

The square root of 4538989 is about 2130.4903191519. The cubic root of 4538989 is about 165.5718024951.

The spelling of 4538989 in words is "four million, five hundred thirty-eight thousand, nine hundred eighty-nine".