42772768 has 12 divisors (see below), whose sum is σ = 84208950. Its totient is φ = 21386368.

The previous prime is 42772759. The next prime is 42772787. The reversal of 42772768 is 86727724.

It can be written as a sum of positive squares in only one way, i.e., 29899024 + 12873744 = 5468^2 + 3588^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668293 + ... + 668356.

Almost surely, 2^42772768 is an apocalyptic number.

It is an amenable number.

42772768 is a deficient number, since it is larger than the sum of its proper divisors (41436182).

42772768 is a wasteful number, since it uses less digits than its factorization.

42772768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336659 (or 1336651 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The square root of 42772768 is about 6540.0892960265. The cubic root of 42772768 is about 349.7215962926.

It can be divided in two parts, 4 and 2772768, that added together give a palindrome (2772772).

The spelling of 42772768 in words is "forty-two million, seven hundred seventy-two thousand, seven hundred sixty-eight".