40308043 has 4 divisors (see below), whose sum is σ = 41291208. Its totient is φ = 39324880.

The previous prime is 40308041. The next prime is 40308053. The reversal of 40308043 is 34080304.

40308043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40308043 - 2¹ = 40308041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40308041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491521 + ... + 491602.

It is an arithmetic number, because the mean of its divisors is an integer number (10322802).

Almost surely, 2^40308043 is an apocalyptic number.

40308043 is a deficient number, since it is larger than the sum of its proper divisors (983165).

40308043 is an equidigital number, since it uses as much as digits as its factorization.

40308043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983164.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40308043 is about 6348.8615514909. The cubic root of 40308043 is about 342.8708555114.

Adding to 40308043 its reverse (34080304), we get a palindrome (74388347).

The spelling of 40308043 in words is "forty million, three hundred eight thousand, forty-three".