42356666 has 16 divisors (see below), whose sum is σ = 69558048. Its totient is φ = 19184400.

The previous prime is 42356653. The next prime is 42356687. The reversal of 42356666 is 66665324.

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, 3161 + ... + 9731.

It is an arithmetic number, because the mean of its divisors is an integer number (4347378).

Almost surely, 2^42356666 is an apocalyptic number.

42356666 is a deficient number, since it is larger than the sum of its proper divisors (27201382).

42356666 is a wasteful number, since it uses less digits than its factorization.

42356666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6877.

The product of its digits is 155520, while the sum is 38.

The square root of 42356666 is about 6508.1999047356. The cubic root of 42356666 is about 348.5838450901.

It can be divided in two parts, 4235 and 6666, that added together give a palindrome (10901).

The spelling of 42356666 in words is "forty-two million, three hundred fifty-six thousand, six hundred sixty-six".