40000589 has 4 divisors (see below), whose sum is σ = 41081724. Its totient is φ = 38919456.

The previous prime is 40000579. The next prime is 40000591. The reversal of 40000589 is 98500004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34515625 + 5484964 = 5875^2 + 2342^2 .

It is a cyclic number.

It is not a de Polignac number, because 40000589 - 2⁴ = 40000573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540512 + ... + 540585.

It is an arithmetic number, because the mean of its divisors is an integer number (10270431).

Almost surely, 2^40000589 is an apocalyptic number.

It is an amenable number.

40000589 is a deficient number, since it is larger than the sum of its proper divisors (1081135).

40000589 is a wasteful number, since it uses less digits than its factorization.

40000589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081134.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 40000589 is about 6324.6018847039. The cubic root of 40000589 is about 341.9968679535.

The spelling of 40000589 in words is "forty million, five hundred eighty-nine", and thus it is an aban number.