40034443 has 6 divisors (see below), whose sum is σ = 40684604. Its totient is φ = 39385896.

The previous prime is 40034437. The next prime is 40034447. The reversal of 40034443 is 34443004.

It is a happy number.

It is not a de Polignac number, because 40034443 - 2⁵ = 40034411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40034447) 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 5 ways as a sum of consecutive naturals, for example, 51405 + ... + 52177.

Almost surely, 2^40034443 is an apocalyptic number.

40034443 is a deficient number, since it is larger than the sum of its proper divisors (650161).

40034443 is an frugal number, since it uses more digits than its factorization.

40034443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 40034443 is about 6327.2776926574. The cubic root of 40034443 is about 342.0933223433.

Adding to 40034443 its reverse (34443004), we get a palindrome (74477447).

It can be divided in two parts, 400 and 34443, that added together give a palindrome (34843).

The spelling of 40034443 in words is "forty million, thirty-four thousand, four hundred forty-three".