40030343 has 4 divisors (see below), whose sum is σ = 40095840. Its totient is φ = 39964848.

The previous prime is 40030313. The next prime is 40030357. The reversal of 40030343 is 34303004.

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 40030343 - 2¹² = 40026247 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 (40030303) 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, 31823 + ... + 33056.

It is an arithmetic number, because the mean of its divisors is an integer number (10023960).

Almost surely, 2^40030343 is an apocalyptic number.

40030343 is a deficient number, since it is larger than the sum of its proper divisors (65497).

40030343 is an equidigital number, since it uses as much as digits as its factorization.

40030343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65496.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 40030343 is about 6326.9536903632. The cubic root of 40030343 is about 342.0816438119.

Adding to 40030343 its reverse (34303004), we get a palindrome (74333347).

The spelling of 40030343 in words is "forty million, thirty thousand, three hundred forty-three".