42574066 has 4 divisors (see below), whose sum is σ = 63861102. Its totient is φ = 21287032.

The previous prime is 42574061. The next prime is 42574099. The reversal of 42574066 is 66047524.

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., 42523441 + 50625 = 6521^2 + 225^2 .

It is not an unprimeable number, because it can be changed into a prime (42574061) 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 as a sum of consecutive naturals, namely, 10643515 + ... + 10643518.

Almost surely, 2^42574066 is an apocalyptic number.

42574066 is a deficient number, since it is larger than the sum of its proper divisors (21287036).

42574066 is a wasteful number, since it uses less digits than its factorization.

42574066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21287035.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 42574066 is about 6524.8805353048. The cubic root of 42574066 is about 349.1792086247.

The spelling of 42574066 in words is "forty-two million, five hundred seventy-four thousand, sixty-six".