40422589 has 4 divisors (see below), whose sum is σ = 40503456. Its totient is φ = 40341724.

The previous prime is 40422587. The next prime is 40422593. The reversal of 40422589 is 98522404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40422589 - 2¹ = 40422587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40422587) 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, 39679 + ... + 40684.

It is an arithmetic number, because the mean of its divisors is an integer number (10125864).

Almost surely, 2^40422589 is an apocalyptic number.

It is an amenable number.

40422589 is a deficient number, since it is larger than the sum of its proper divisors (80867).

40422589 is an equidigital number, since it uses as much as digits as its factorization.

40422589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80866.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 40422589 is about 6357.8761390892. The cubic root of 40422589 is about 343.1953345133.

The spelling of 40422589 in words is "forty million, four hundred twenty-two thousand, five hundred eighty-nine".