40343983 has 8 divisors (see below), whose sum is σ = 41126400. Its totient is φ = 39567000.

The previous prime is 40343977. The next prime is 40343987. The reversal of 40343983 is 38934304.

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 40343983 - 2⁵ = 40343951 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40343987) 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, 15618 + ... + 18016.

It is an arithmetic number, because the mean of its divisors is an integer number (5140800).

Almost surely, 2^40343983 is an apocalyptic number.

40343983 is a deficient number, since it is larger than the sum of its proper divisors (782417).

40343983 is a wasteful number, since it uses less digits than its factorization.

40343983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 40343983 is about 6351.6913495541. The cubic root of 40343983 is about 342.9727302819.

The spelling of 40343983 in words is "forty million, three hundred forty-three thousand, nine hundred eighty-three".