40943589 has 4 divisors (see below), whose sum is σ = 54591456. Its totient is φ = 27295724.

The previous prime is 40943587. The next prime is 40943659. The reversal of 40943589 is 98534904.

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 40943589 - 2¹ = 40943587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40943589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40943587) 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, 6823929 + ... + 6823934.

It is an arithmetic number, because the mean of its divisors is an integer number (13647864).

Almost surely, 2^40943589 is an apocalyptic number.

It is an amenable number.

40943589 is a deficient number, since it is larger than the sum of its proper divisors (13647867).

40943589 is a wasteful number, since it uses less digits than its factorization.

40943589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13647866.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 40943589 is about 6398.7177621770. The cubic root of 40943589 is about 344.6635072401.

The spelling of 40943589 in words is "forty million, nine hundred forty-three thousand, five hundred eighty-nine".