40755769 has 4 divisors (see below), whose sum is σ = 40877044. Its totient is φ = 40634496.

The previous prime is 40755733. The next prime is 40755809. The reversal of 40755769 is 96755704.

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 25452025 + 15303744 = 5045^2 + 3912^2 .

It is a cyclic number.

It is not a de Polignac number, because 40755769 - 2⁷ = 40755641 is a prime.

It is a super-2 number, since 2×40755769² = 3322065413562722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40755709) 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, 60132 + ... + 60805.

It is an arithmetic number, because the mean of its divisors is an integer number (10219261).

Almost surely, 2^40755769 is an apocalyptic number.

It is an amenable number.

40755769 is a deficient number, since it is larger than the sum of its proper divisors (121275).

40755769 is a wasteful number, since it uses less digits than its factorization.

40755769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121274.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 40755769 is about 6384.0245143640. The cubic root of 40755769 is about 344.1356758172.

The spelling of 40755769 in words is "forty million, seven hundred fifty-five thousand, seven hundred sixty-nine".