42066444 has 24 divisors (see below), whose sum is σ = 112177408. Its totient is φ = 12018960.

The previous prime is 42066433. The next prime is 42066461. The reversal of 42066444 is 44466024.

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, 250312 + ... + 250479.

Almost surely, 2^42066444 is an apocalyptic number.

It is an amenable number.

42066444 is an abundant number, since it is smaller than the sum of its proper divisors (70110964).

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

42066444 is a wasteful number, since it uses less digits than its factorization.

42066444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500805 (or 500803 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 42066444 is about 6485.8649384643. The cubic root of 42066444 is about 347.7858703837.

The spelling of 42066444 in words is "forty-two million, sixty-six thousand, four hundred forty-four".