40589623 has 4 divisors (see below), whose sum is σ = 41453280. Its totient is φ = 39725968.

The previous prime is 40589611. The next prime is 40589651. The reversal of 40589623 is 32698504.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40589623 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 (40589603) 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, 431758 + ... + 431851.

It is an arithmetic number, because the mean of its divisors is an integer number (10363320).

Almost surely, 2^40589623 is an apocalyptic number.

40589623 is a deficient number, since it is larger than the sum of its proper divisors (863657).

40589623 is an equidigital number, since it uses as much as digits as its factorization.

40589623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863656.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 40589623 is about 6370.9985873488. The cubic root of 40589623 is about 343.6674015097.

The spelling of 40589623 in words is "forty million, five hundred eighty-nine thousand, six hundred twenty-three".