40048165 has 8 divisors (see below), whose sum is σ = 48716568. Its totient is φ = 31599360.

The previous prime is 40048163. The next prime is 40048199. The reversal of 40048165 is 56184004.

It can be written as a sum of positive squares in 4 ways, for example, as 11082241 + 28965924 = 3329^2 + 5382^2 .

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

It is not a de Polignac number, because 40048165 - 2¹ = 40048163 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 (40048163) 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 7 ways as a sum of consecutive naturals, for example, 54496 + ... + 55225.

It is an arithmetic number, because the mean of its divisors is an integer number (6089571).

Almost surely, 2^40048165 is an apocalyptic number.

It is an amenable number.

40048165 is a deficient number, since it is larger than the sum of its proper divisors (8668403).

40048165 is a wasteful number, since it uses less digits than its factorization.

40048165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109799.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 40048165 is about 6328.3619523539. The cubic root of 40048165 is about 342.1324025952.

The spelling of 40048165 in words is "forty million, forty-eight thousand, one hundred sixty-five".