42666704 has 20 divisors (see below), whose sum is σ = 87018240. Its totient is φ = 20210400.

The previous prime is 42666697. The next prime is 42666713. The reversal of 42666704 is 40766624.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69872 + ... + 70479.

It is an arithmetic number, because the mean of its divisors is an integer number (4350912).

Almost surely, 2^42666704 is an apocalyptic number.

It is an amenable number.

42666704 is an abundant number, since it is smaller than the sum of its proper divisors (44351536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42666704 is a wasteful number, since it uses less digits than its factorization.

42666704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140378 (or 140372 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 42666704 is about 6531.9755051592. The cubic root of 42666704 is about 349.4322878122.

The spelling of 42666704 in words is "forty-two million, six hundred sixty-six thousand, seven hundred four".