42772858 has 4 divisors (see below), whose sum is σ = 64159290. Its totient is φ = 21386428.

The previous prime is 42772843. The next prime is 42772859. The reversal of 42772858 is 85827724.

42772858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28912129 + 13860729 = 5377^2 + 3723^2 .

It is not an unprimeable number, because it can be changed into a prime (42772859) by changing a digit.

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 as a sum of consecutive naturals, namely, 10693213 + ... + 10693216.

Almost surely, 2^42772858 is an apocalyptic number.

42772858 is a deficient number, since it is larger than the sum of its proper divisors (21386432).

42772858 is a wasteful number, since it uses less digits than its factorization.

42772858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21386431.

The product of its digits is 250880, while the sum is 43.

The square root of 42772858 is about 6540.0961766628. The cubic root of 42772858 is about 349.7218415804.

The spelling of 42772858 in words is "forty-two million, seven hundred seventy-two thousand, eight hundred fifty-eight".