42440765 has 16 divisors (see below), whose sum is σ = 52911360. Its totient is φ = 32656320.

The previous prime is 42440759. The next prime is 42440771. The reversal of 42440765 is 56704424.

42440765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42440759) and next prime (42440771).

It is not a de Polignac number, because 42440765 - 2¹⁸ = 42178621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12335 + ... + 15395.

It is an arithmetic number, because the mean of its divisors is an integer number (3306960).

Almost surely, 2^42440765 is an apocalyptic number.

It is an amenable number.

42440765 is a deficient number, since it is larger than the sum of its proper divisors (10470595).

42440765 is a wasteful number, since it uses less digits than its factorization.

42440765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 42440765 is about 6514.6577039780. The cubic root of 42440765 is about 348.8143965393.

The spelling of 42440765 in words is "forty-two million, four hundred forty thousand, seven hundred sixty-five".