40036043 has 4 divisors (see below), whose sum is σ = 40714680. Its totient is φ = 39357408.

The previous prime is 40036019. The next prime is 40036081. The reversal of 40036043 is 34063004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40036043 - 2¹⁴ = 40019659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40036093) 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, 339230 + ... + 339347.

It is an arithmetic number, because the mean of its divisors is an integer number (10178670).

Almost surely, 2^40036043 is an apocalyptic number.

40036043 is a deficient number, since it is larger than the sum of its proper divisors (678637).

40036043 is an equidigital number, since it uses as much as digits as its factorization.

40036043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678636.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 40036043 is about 6327.4041280765. The cubic root of 40036043 is about 342.0978796027.

Adding to 40036043 its reverse (34063004), we get a palindrome (74099047).

The spelling of 40036043 in words is "forty million, thirty-six thousand, forty-three".