40543343 has 8 divisors (see below), whose sum is σ = 41233536. Its totient is φ = 39856600.

The previous prime is 40543337. The next prime is 40543361. The reversal of 40543343 is 34334504.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40543343 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 (40543333) 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, 34280 + ... + 35442.

It is an arithmetic number, because the mean of its divisors is an integer number (5154192).

Almost surely, 2^40543343 is an apocalyptic number.

40543343 is the 3404-th centered heptagonal number.

40543343 is a deficient number, since it is larger than the sum of its proper divisors (690193).

40543343 is a wasteful number, since it uses less digits than its factorization.

40543343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 40543343 is about 6367.3654677582. The cubic root of 40543343 is about 343.5367361253.

Adding to 40543343 its reverse (34334504), we get a palindrome (74877847).

The spelling of 40543343 in words is "forty million, five hundred forty-three thousand, three hundred forty-three".