40115043 has 12 divisors (see below), whose sum is σ = 58001008. Its totient is φ = 26717040.

The previous prime is 40115041. The next prime is 40115057. The reversal of 40115043 is 34051104.

It is a happy number.

It is not a de Polignac number, because 40115043 - 2¹ = 40115041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40115041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12978 + ... + 15768.

Almost surely, 2^40115043 is an apocalyptic number.

40115043 is a deficient number, since it is larger than the sum of its proper divisors (17885965).

40115043 is a wasteful number, since it uses less digits than its factorization.

40115043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394 (or 4391 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40115043 is about 6333.6437380074. The cubic root of 40115043 is about 342.3227434504.

Adding to 40115043 its reverse (34051104), we get a palindrome (74166147).

The spelling of 40115043 in words is "forty million, one hundred fifteen thousand, forty-three".