42066206 has 64 divisors (see below), whose sum is σ = 81648000. Its totient is φ = 16144128.

The previous prime is 42066203. The next prime is 42066223. The reversal of 42066206 is 60266024.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42066203) 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 31 ways as a sum of consecutive naturals, for example, 472610 + ... + 472698.

It is an arithmetic number, because the mean of its divisors is an integer number (1275750).

Almost surely, 2^42066206 is an apocalyptic number.

42066206 is a deficient number, since it is larger than the sum of its proper divisors (39581794).

42066206 is a wasteful number, since it uses less digits than its factorization.

42066206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 42066206 is about 6485.8465908469. The cubic root of 42066206 is about 347.7852144913.

The spelling of 42066206 in words is "forty-two million, sixty-six thousand, two hundred six".