42066226 has 16 divisors (see below), whose sum is σ = 64215648. Its totient is φ = 20664000.

The previous prime is 42066223. The next prime is 42066257. The reversal of 42066226 is 62266024.

It is a junction number, because it is equal to n+sod(n) for n = 42066194 and 42066203.

It is not an unprimeable number, because it can be changed into a prime (42066223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34426 + ... + 35626.

It is an arithmetic number, because the mean of its divisors is an integer number (4013478).

Almost surely, 2^42066226 is an apocalyptic number.

42066226 is a deficient number, since it is larger than the sum of its proper divisors (22149422).

42066226 is a wasteful number, since it uses less digits than its factorization.

42066226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 42066226 is about 6485.8481326655. The cubic root of 42066226 is about 347.7852696084.

The spelling of 42066226 in words is "forty-two million, sixty-six thousand, two hundred twenty-six".