42672765 has 16 divisors (see below), whose sum is σ = 71870400. Its totient is φ = 21560832.

The previous prime is 42672713. The next prime is 42672779. The reversal of 42672765 is 56727624.

It is a happy number.

42672765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42672765 - 2⁶ = 42672701 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, 74580 + ... + 75149.

It is an arithmetic number, because the mean of its divisors is an integer number (4491900).

Almost surely, 2^42672765 is an apocalyptic number.

It is an amenable number.

42672765 is a deficient number, since it is larger than the sum of its proper divisors (29197635).

42672765 is a wasteful number, since it uses less digits than its factorization.

42672765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149756.

The product of its digits is 141120, while the sum is 39.

The square root of 42672765 is about 6532.4394371475. The cubic root of 42672765 is about 349.4488331791.

The spelling of 42672765 in words is "forty-two million, six hundred seventy-two thousand, seven hundred sixty-five".