42666630 has 16 divisors (see below), whose sum is σ = 102399984. Its totient is φ = 11377760.

The previous prime is 42666629. The next prime is 42666641. The reversal of 42666630 is 3666624.

It is a junction number, because it is equal to n+sod(n) for n = 42666591 and 42666600.

It is a congruent number.

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, 711081 + ... + 711140.

It is an arithmetic number, because the mean of its divisors is an integer number (6399999).

Almost surely, 2^42666630 is an apocalyptic number.

42666630 is an abundant number, since it is smaller than the sum of its proper divisors (59733354).

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

42666630 is a wasteful number, since it uses less digits than its factorization.

42666630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422231.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 42666630 is about 6531.9698407142. The cubic root of 42666630 is about 349.4320857967.

The spelling of 42666630 in words is "forty-two million, six hundred sixty-six thousand, six hundred thirty".