40840593 has 4 divisors (see below), whose sum is σ = 54454128. Its totient is φ = 27227060.

The previous prime is 40840577. The next prime is 40840601. The reversal of 40840593 is 39504804.

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 40840593 - 2⁴ = 40840577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40840523) 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, 6806763 + ... + 6806768.

It is an arithmetic number, because the mean of its divisors is an integer number (13613532).

Almost surely, 2^40840593 is an apocalyptic number.

It is an amenable number.

40840593 is a deficient number, since it is larger than the sum of its proper divisors (13613535).

40840593 is a wasteful number, since it uses less digits than its factorization.

40840593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13613534.

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

The square root of 40840593 is about 6390.6645194377. The cubic root of 40840593 is about 344.3742574723.

The spelling of 40840593 in words is "forty million, eight hundred forty thousand, five hundred ninety-three".