40865386 has 8 divisors (see below), whose sum is σ = 61347204. Its totient is φ = 20416320.

The previous prime is 40865369. The next prime is 40865387. The reversal of 40865386 is 68356804.

It can be written as a sum of positive squares in 2 ways, for example, as 40717161 + 148225 = 6381^2 + 385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40865387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785 + ... + 10228.

Almost surely, 2^40865386 is an apocalyptic number.

40865386 is a deficient number, since it is larger than the sum of its proper divisors (20481818).

40865386 is a wasteful number, since it uses less digits than its factorization.

40865386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16376.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 40865386 is about 6392.6040077577. The cubic root of 40865386 is about 344.4439295248.

The spelling of 40865386 in words is "forty million, eight hundred sixty-five thousand, three hundred eighty-six".