42666794 has 32 divisors (see below), whose sum is σ = 69120000. Its totient is φ = 19706544.

The previous prime is 42666769. The next prime is 42666797. The reversal of 42666794 is 49766624.

It is not an unprimeable number, because it can be changed into a prime (42666797) 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 15 ways as a sum of consecutive naturals, for example, 214307 + ... + 214505.

It is an arithmetic number, because the mean of its divisors is an integer number (2160000).

Almost surely, 2^42666794 is an apocalyptic number.

42666794 is a deficient number, since it is larger than the sum of its proper divisors (26453206).

42666794 is a wasteful number, since it uses less digits than its factorization.

42666794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362.

The product of its digits is 435456, while the sum is 44.

The square root of 42666794 is about 6531.9823943425. The cubic root of 42666794 is about 349.4325335064.

The spelling of 42666794 in words is "forty-two million, six hundred sixty-six thousand, seven hundred ninety-four".