40816087 has 4 divisors (see below), whose sum is σ = 43955800. Its totient is φ = 37676376.

The previous prime is 40816049. The next prime is 40816091. The reversal of 40816087 is 78061804.

It is a happy number.

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 40816087 - 2⁷ = 40815959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40816187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569837 + ... + 1569862.

It is an arithmetic number, because the mean of its divisors is an integer number (10988950).

Almost surely, 2^40816087 is an apocalyptic number.

40816087 is a deficient number, since it is larger than the sum of its proper divisors (3139713).

40816087 is a wasteful number, since it uses less digits than its factorization.

40816087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139712.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 40816087 is about 6388.7469037363. The cubic root of 40816087 is about 344.3053642180.

The spelling of 40816087 in words is "forty million, eight hundred sixteen thousand, eighty-seven".