40844493 has 20 divisors (see below), whose sum is σ = 61258428. Its totient is φ = 27120960.

The previous prime is 40844483. The next prime is 40844519. The reversal of 40844493 is 39444804.

It can be written as a sum of positive squares in 2 ways, for example, as 35070084 + 5774409 = 5922^2 + 2403^2 .

It is not a de Polignac number, because 40844493 - 2²⁵ = 7290061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40844413) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22873 + ... + 24593.

Almost surely, 2^40844493 is an apocalyptic number.

It is an amenable number.

40844493 is a deficient number, since it is larger than the sum of its proper divisors (20413935).

40844493 is a wasteful number, since it uses less digits than its factorization.

40844493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 40844493 is about 6390.9696447409. The cubic root of 40844493 is about 344.3852189264.

The spelling of 40844493 in words is "forty million, eight hundred forty-four thousand, four hundred ninety-three".