40583943 has 16 divisors (see below), whose sum is σ = 63289600. Its totient is φ = 25631640.

The previous prime is 40583909. The next prime is 40583999. The reversal of 40583943 is 34938504.

It is not a de Polignac number, because 40583943 - 2¹⁷ = 40452871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40583898 and 40583907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40583143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39043 + ... + 40068.

It is an arithmetic number, because the mean of its divisors is an integer number (3955600).

Almost surely, 2^40583943 is an apocalyptic number.

40583943 is a deficient number, since it is larger than the sum of its proper divisors (22705657).

40583943 is a wasteful number, since it uses less digits than its factorization.

40583943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79139 (or 79133 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 40583943 is about 6370.5528017590. The cubic root of 40583943 is about 343.6513701388.

It can be divided in two parts, 4058 and 3943, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 40583943 in words is "forty million, five hundred eighty-three thousand, nine hundred forty-three".