42666036 has 96 divisors (see below), whose sum is σ = 118444032. Its totient is φ = 11702400.

The previous prime is 42665957. The next prime is 42666053. The reversal of 42666036 is 63066624.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42665988 and 42666006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398695 + ... + 398801.

It is an arithmetic number, because the mean of its divisors is an integer number (1233792).

Almost surely, 2^42666036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42666036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59222016).

42666036 is an abundant number, since it is smaller than the sum of its proper divisors (75777996).

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

42666036 is a wasteful number, since it uses less digits than its factorization.

42666036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

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

The square root of 42666036 is about 6531.9243718831. The cubic root of 42666036 is about 349.4304642045.

The spelling of 42666036 in words is "forty-two million, six hundred sixty-six thousand, thirty-six".