42771682 has 8 divisors (see below), whose sum is σ = 64793052. Its totient is φ = 21174000.

The previous prime is 42771671. The next prime is 42771683. The reversal of 42771682 is 28617724.

It can be written as a sum of positive squares in 2 ways, for example, as 32137561 + 10634121 = 5669^2 + 3261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42771682² = 3658833562218248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42771683) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 105669 + ... + 106072.

Almost surely, 2^42771682 is an apocalyptic number.

42771682 is a deficient number, since it is larger than the sum of its proper divisors (22021370).

42771682 is a wasteful number, since it uses less digits than its factorization.

42771682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211844.

The product of its digits is 37632, while the sum is 37.

The square root of 42771682 is about 6540.0062691101. The cubic root of 42771682 is about 349.7186364587.

The spelling of 42771682 in words is "forty-two million, seven hundred seventy-one thousand, six hundred eighty-two".