42756772 has 24 divisors (see below), whose sum is σ = 76005216. Its totient is φ = 21043968.

The previous prime is 42756737. The next prime is 42756797. The reversal of 42756772 is 27765724.

It is an unprimeable number.

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, 120948 + ... + 121300.

It is an arithmetic number, because the mean of its divisors is an integer number (3166884).

Almost surely, 2^42756772 is an apocalyptic number.

It is an amenable number.

42756772 is a deficient number, since it is larger than the sum of its proper divisors (33248444).

42756772 is a wasteful number, since it uses less digits than its factorization.

42756772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 745 counting only the distinct ones).

The product of its digits is 164640, while the sum is 40.

The square root of 42756772 is about 6538.8662625871. The cubic root of 42756772 is about 349.6779949981.

The spelling of 42756772 in words is "forty-two million, seven hundred fifty-six thousand, seven hundred seventy-two".