42327765 has 20 divisors (see below), whose sum is σ = 75877164. Its totient is φ = 22574592.

The previous prime is 42327757. The next prime is 42327827. The reversal of 42327765 is 56772324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9253764 + 33074001 = 3042^2 + 5751^2 .

It is not a de Polignac number, because 42327765 - 2³ = 42327757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51852 + ... + 52661.

Almost surely, 2^42327765 is an apocalyptic number.

42327765 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42327765 is a deficient number, since it is larger than the sum of its proper divisors (33549399).

42327765 is a wasteful number, since it uses less digits than its factorization.

42327765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104530 (or 104521 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 42327765 is about 6505.9791730377. The cubic root of 42327765 is about 348.5045445937.

The spelling of 42327765 in words is "forty-two million, three hundred twenty-seven thousand, seven hundred sixty-five".