42774166 has 4 divisors (see below), whose sum is σ = 64161252. Its totient is φ = 21387082.

The previous prime is 42774157. The next prime is 42774209. The reversal of 42774166 is 66147724.

42774166 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 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 as a sum of consecutive naturals, namely, 10693540 + ... + 10693543.

It is an arithmetic number, because the mean of its divisors is an integer number (16040313).

Almost surely, 2^42774166 is an apocalyptic number.

42774166 is a deficient number, since it is larger than the sum of its proper divisors (21387086).

42774166 is a wasteful number, since it uses less digits than its factorization.

42774166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21387085.

The product of its digits is 56448, while the sum is 37.

The square root of 42774166 is about 6540.1961744278. The cubic root of 42774166 is about 349.7254063918.

The spelling of 42774166 in words is "forty-two million, seven hundred seventy-four thousand, one hundred sixty-six".