42765366 has 16 divisors (see below), whose sum is σ = 97749504. Its totient is φ = 12218664.

The previous prime is 42765361. The next prime is 42765367. The reversal of 42765366 is 66356724.

It is a super-2 number, since 2×42765366² = 3657753058227912, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42765361) 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, 509070 + ... + 509153.

It is an arithmetic number, because the mean of its divisors is an integer number (6109344).

Almost surely, 2^42765366 is an apocalyptic number.

42765366 is an abundant number, since it is smaller than the sum of its proper divisors (54984138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42765366 is a wasteful number, since it uses less digits than its factorization.

42765366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018235.

The product of its digits is 181440, while the sum is 39.

The square root of 42765366 is about 6539.5233771277. The cubic root of 42765366 is about 349.7014215512.

The spelling of 42765366 in words is "forty-two million, seven hundred sixty-five thousand, three hundred sixty-six".