40543793 has 8 divisors (see below), whose sum is σ = 43976520. Its totient is φ = 37227520.

The previous prime is 40543747. The next prime is 40543799. The reversal of 40543793 is 39734504.

It can be written as a sum of positive squares in 4 ways, for example, as 954529 + 39589264 = 977^2 + 6292^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40543793 - 2⁶ = 40543729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40543799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28388 + ... + 29781.

It is an arithmetic number, because the mean of its divisors is an integer number (5497065).

Almost surely, 2^40543793 is an apocalyptic number.

It is an amenable number.

40543793 is a deficient number, since it is larger than the sum of its proper divisors (3432727).

40543793 is a wasteful number, since it uses less digits than its factorization.

40543793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58227.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 40543793 is about 6367.4008040958. The cubic root of 40543793 is about 343.5380071187.

The spelling of 40543793 in words is "forty million, five hundred forty-three thousand, seven hundred ninety-three".