42026666 has 16 divisors (see below), whose sum is σ = 68873760. Its totient is φ = 19074480.

The previous prime is 42026659. The next prime is 42026671. The reversal of 42026666 is 66662024.

42026666 is a modest number, since divided by 6666 gives 4202 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22625 + ... + 24411.

It is an arithmetic number, because the mean of its divisors is an integer number (4304610).

Almost surely, 2^42026666 is an apocalyptic number.

42026666 is a deficient number, since it is larger than the sum of its proper divisors (26847094).

42026666 is a wasteful number, since it uses less digits than its factorization.

42026666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 42026666 is about 6482.7976985249. The cubic root of 42026666 is about 347.6762137876.

The spelling of 42026666 in words is "forty-two million, twenty-six thousand, six hundred sixty-six".