4540389 has 24 divisors (see below), whose sum is σ = 7162848. Its totient is φ = 2550240.

The previous prime is 4540369. The next prime is 4540397. The reversal of 4540389 is 9830454.

It is not a de Polignac number, because 4540389 - 2⁵ = 4540357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540369) 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, 9619 + ... + 10079.

It is an arithmetic number, because the mean of its divisors is an integer number (298452).

Almost surely, 2^4540389 is an apocalyptic number.

4540389 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4540389 is a deficient number, since it is larger than the sum of its proper divisors (2622459).

4540389 is a wasteful number, since it uses less digits than its factorization.

4540389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 4540389 is about 2130.8188566840. The cubic root of 4540389 is about 165.5888236640.

The spelling of 4540389 in words is "four million, five hundred forty thousand, three hundred eighty-nine".