40873915 has 4 divisors (see below), whose sum is σ = 49048704. Its totient is φ = 32699128.

The previous prime is 40873913. The next prime is 40873927. The reversal of 40873915 is 51937804.

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 40873915 - 2¹ = 40873913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40873913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4087387 + ... + 4087396.

It is an arithmetic number, because the mean of its divisors is an integer number (12262176).

Almost surely, 2^40873915 is an apocalyptic number.

40873915 is a deficient number, since it is larger than the sum of its proper divisors (8174789).

40873915 is an equidigital number, since it uses as much as digits as its factorization.

40873915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174788.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 40873915 is about 6393.2710719944. The cubic root of 40873915 is about 344.4678907807.

The spelling of 40873915 in words is "forty million, eight hundred seventy-three thousand, nine hundred fifteen".