40015043 has 4 divisors (see below), whose sum is σ = 40134120. Its totient is φ = 39895968.

The previous prime is 40014977. The next prime is 40015049. The reversal of 40015043 is 34051004.

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 40015043 - 2¹² = 40010947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40015049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59033 + ... + 59706.

It is an arithmetic number, because the mean of its divisors is an integer number (10033530).

Almost surely, 2^40015043 is an apocalyptic number.

40015043 is a deficient number, since it is larger than the sum of its proper divisors (119077).

40015043 is a wasteful number, since it uses less digits than its factorization.

40015043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119076.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40015043 is about 6325.7444621167. The cubic root of 40015043 is about 342.0380559090.

Adding to 40015043 its reverse (34051004), we get a palindrome (74066047).

The spelling of 40015043 in words is "forty million, fifteen thousand, forty-three".