42765668 has 24 divisors (see below), whose sum is σ = 81908064. Its totient is φ = 19376000.

The previous prime is 42765661. The next prime is 42765677. The reversal of 42765668 is 86656724.

It is a super-3 number, since 3×42765668³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (42765661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13868 + ... + 16668.

It is an arithmetic number, because the mean of its divisors is an integer number (3412836).

Almost surely, 2^42765668 is an apocalyptic number.

It is an amenable number.

42765668 is a deficient number, since it is larger than the sum of its proper divisors (39142396).

42765668 is a wasteful number, since it uses less digits than its factorization.

42765668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163 (or 3161 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 42765668 is about 6539.5464674548. The cubic root of 42765668 is about 349.7022447219.

It can be divided in two parts, 427656 and 68, that added together give a palindrome (427724).

The spelling of 42765668 in words is "forty-two million, seven hundred sixty-five thousand, six hundred sixty-eight".