40032443 has 8 divisors (see below), whose sum is σ = 45570816. Its totient is φ = 34810600.

The previous prime is 40032403. The next prime is 40032451. The reversal of 40032443 is 34423004.

It is a happy number.

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

It is not a de Polignac number, because 40032443 - 2¹⁰ = 40031419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40032403) 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, 78863 + ... + 79368.

It is an arithmetic number, because the mean of its divisors is an integer number (5696352).

Almost surely, 2^40032443 is an apocalyptic number.

40032443 is a deficient number, since it is larger than the sum of its proper divisors (5538373).

40032443 is a wasteful number, since it uses less digits than its factorization.

40032443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158265.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40032443 is about 6327.1196448305. The cubic root of 40032443 is about 342.0876255983.

Adding to 40032443 its reverse (34423004), we get a palindrome (74455447).

It can be divided in two parts, 4003 and 2443, that added together give a palindrome (6446).

The spelling of 40032443 in words is "forty million, thirty-two thousand, four hundred forty-three".