40623043 has 4 divisors (see below), whose sum is σ = 40717728. Its totient is φ = 40528360.

The previous prime is 40623041. The next prime is 40623049. The reversal of 40623043 is 34032604.

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 40623043 - 2¹ = 40623041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40623041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46696 + ... + 47557.

It is an arithmetic number, because the mean of its divisors is an integer number (10179432).

Almost surely, 2^40623043 is an apocalyptic number.

40623043 is a deficient number, since it is larger than the sum of its proper divisors (94685).

40623043 is an equidigital number, since it uses as much as digits as its factorization.

40623043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94684.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 40623043 is about 6373.6208704315. The cubic root of 40623043 is about 343.7616966598.

Adding to 40623043 its reverse (34032604), we get a palindrome (74655647).

The spelling of 40623043 in words is "forty million, six hundred twenty-three thousand, forty-three".