40330343 has 4 divisors (see below), whose sum is σ = 40898448. Its totient is φ = 39762240.

The previous prime is 40330337. The next prime is 40330351. The reversal of 40330343 is 34303304.

It is a happy number.

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 40330343 - 2¹⁰ = 40329319 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 (40330313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283946 + ... + 284087.

It is an arithmetic number, because the mean of its divisors is an integer number (10224612).

Almost surely, 2^40330343 is an apocalyptic number.

40330343 is a deficient number, since it is larger than the sum of its proper divisors (568105).

40330343 is an equidigital number, since it uses as much as digits as its factorization.

40330343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568104.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 40330343 is about 6350.6175290282. The cubic root of 40330343 is about 342.9340737504.

Adding to 40330343 its reverse (34303304), we get a palindrome (74633647).

The spelling of 40330343 in words is "forty million, three hundred thirty thousand, three hundred forty-three".