40036343 has 4 divisors (see below), whose sum is σ = 42391440. Its totient is φ = 37681248.

The previous prime is 40036333. The next prime is 40036349. The reversal of 40036343 is 34363004.

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

It is not a de Polignac number, because 40036343 - 2¹² = 40032247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40036349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177523 + ... + 1177556.

It is an arithmetic number, because the mean of its divisors is an integer number (10597860).

Almost surely, 2^40036343 is an apocalyptic number.

40036343 is a deficient number, since it is larger than the sum of its proper divisors (2355097).

40036343 is a wasteful number, since it uses less digits than its factorization.

40036343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355096.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 40036343 is about 6327.4278344364. The cubic root of 40036343 is about 342.0987340753.

Adding to 40036343 its reverse (34363004), we get a palindrome (74399347).

The spelling of 40036343 in words is "forty million, thirty-six thousand, three hundred forty-three".