42771466 has 4 divisors (see below), whose sum is σ = 64157202. Its totient is φ = 21385732.

The previous prime is 42771461. The next prime is 42771481. The reversal of 42771466 is 66417724.

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., 41280625 + 1490841 = 6425^2 + 1221^2 .

It is not an unprimeable number, because it can be changed into a prime (42771461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10692865 + ... + 10692868.

Almost surely, 2^42771466 is an apocalyptic number.

42771466 is a deficient number, since it is larger than the sum of its proper divisors (21385736).

42771466 is a wasteful number, since it uses less digits than its factorization.

42771466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21385735.

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

The square root of 42771466 is about 6539.9897553437. The cubic root of 42771466 is about 349.7180477564.

The spelling of 42771466 in words is "forty-two million, seven hundred seventy-one thousand, four hundred sixty-six".