40486855 has 4 divisors (see below), whose sum is σ = 48584232. Its totient is φ = 32389480.

The previous prime is 40486801. The next prime is 40486861. The reversal of 40486855 is 55868404.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40486855 - 2⁹ = 40486343 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4048681 + ... + 4048690.

It is an arithmetic number, because the mean of its divisors is an integer number (12146058).

Almost surely, 2^40486855 is an apocalyptic number.

40486855 is a deficient number, since it is larger than the sum of its proper divisors (8097377).

40486855 is an equidigital number, since it uses as much as digits as its factorization.

40486855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8097376.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 40486855 is about 6362.9281781268. The cubic root of 40486855 is about 343.3771149957.

The spelling of 40486855 in words is "forty million, four hundred eighty-six thousand, eight hundred fifty-five".