40382765 has 4 divisors (see below), whose sum is σ = 48459324. Its totient is φ = 32306208.

The previous prime is 40382759. The next prime is 40382773. The reversal of 40382765 is 56728304.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11792356 + 28590409 = 3434^2 + 5347^2 .

It is a cyclic number.

It is not a de Polignac number, because 40382765 - 2¹² = 40378669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4038272 + ... + 4038281.

It is an arithmetic number, because the mean of its divisors is an integer number (12114831).

Almost surely, 2^40382765 is an apocalyptic number.

It is an amenable number.

40382765 is a deficient number, since it is larger than the sum of its proper divisors (8076559).

40382765 is an equidigital number, since it uses as much as digits as its factorization.

40382765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8076558.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 40382765 is about 6354.7435038717. The cubic root of 40382765 is about 343.0825930805.

The spelling of 40382765 in words is "forty million, three hundred eighty-two thousand, seven hundred sixty-five".