40501765 has 4 divisors (see below), whose sum is σ = 48602124. Its totient is φ = 32401408.

The previous prime is 40501709. The next prime is 40501801. The reversal of 40501765 is 56710504.

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 4104676 + 36397089 = 2026^2 + 6033^2 .

It is a cyclic number.

It is not a de Polignac number, because 40501765 - 2¹⁹ = 39977477 is a prime.

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, 4050172 + ... + 4050181.

It is an arithmetic number, because the mean of its divisors is an integer number (12150531).

Almost surely, 2^40501765 is an apocalyptic number.

It is an amenable number.

40501765 is a deficient number, since it is larger than the sum of its proper divisors (8100359).

40501765 is an equidigital number, since it uses as much as digits as its factorization.

40501765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8100358.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 40501765 is about 6364.0997006647. The cubic root of 40501765 is about 343.4192613865.

The spelling of 40501765 in words is "forty million, five hundred one thousand, seven hundred sixty-five".