40423043 has 8 divisors (see below), whose sum is σ = 41132112. Its totient is φ = 39717216.

The previous prime is 40423001. The next prime is 40423057. The reversal of 40423043 is 34032404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40423043 - 2¹⁴ = 40406659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40423073) 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, 50321 + ... + 51117.

It is an arithmetic number, because the mean of its divisors is an integer number (5141514).

Almost surely, 2^40423043 is an apocalyptic number.

40423043 is a deficient number, since it is larger than the sum of its proper divisors (709069).

40423043 is an equidigital number, since it uses as much as digits as its factorization.

40423043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621.

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

The square root of 40423043 is about 6357.9118427358. The cubic root of 40423043 is about 343.1966193568.

Adding to 40423043 its reverse (34032404), we get a palindrome (74455447).

The spelling of 40423043 in words is "forty million, four hundred twenty-three thousand, forty-three".