40501343 has 4 divisors (see below), whose sum is σ = 40516008. Its totient is φ = 40486680.

The previous prime is 40501339. The next prime is 40501379. The reversal of 40501343 is 34310504.

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 40501343 - 2² = 40501339 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 (40501333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796 + ... + 9177.

It is an arithmetic number, because the mean of its divisors is an integer number (10129002).

Almost surely, 2^40501343 is an apocalyptic number.

40501343 is a deficient number, since it is larger than the sum of its proper divisors (14665).

40501343 is a wasteful number, since it uses less digits than its factorization.

40501343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14664.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40501343 is about 6364.0665458494. The cubic root of 40501343 is about 343.4180686530.

Adding to 40501343 its reverse (34310504), we get a palindrome (74811847).

The spelling of 40501343 in words is "forty million, five hundred one thousand, three hundred forty-three".