40001343 has 8 divisors (see below), whose sum is σ = 53655168. Its totient is φ = 26507544.

The previous prime is 40001303. The next prime is 40001359. The reversal of 40001343 is 34310004.

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

It is not a de Polignac number, because 40001343 - 2¹² = 39997247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001303) 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, 39421 + ... + 40422.

It is an arithmetic number, because the mean of its divisors is an integer number (6706896).

Almost surely, 2^40001343 is an apocalyptic number.

40001343 is a deficient number, since it is larger than the sum of its proper divisors (13653825).

40001343 is a wasteful number, since it uses less digits than its factorization.

40001343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80013.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40001343 is about 6324.6614929180. The cubic root of 40001343 is about 341.9990167887. Note that the first 3 decimals are identical.

Adding to 40001343 its reverse (34310004), we get a palindrome (74311347).

The spelling of 40001343 in words is "forty million, one thousand, three hundred forty-three".