42866446 has 16 divisors (see below), whose sum is σ = 73609344. Its totient is φ = 18340344.

The previous prime is 42866441. The next prime is 42866449. The reversal of 42866446 is 64466824.

It is a junction number, because it is equal to n+sod(n) for n = 42866399 and 42866408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42866441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7321 + ... + 11803.

It is an arithmetic number, because the mean of its divisors is an integer number (4600584).

Almost surely, 2^42866446 is an apocalyptic number.

42866446 is a deficient number, since it is larger than the sum of its proper divisors (30742898).

42866446 is a wasteful number, since it uses less digits than its factorization.

42866446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175.

The product of its digits is 221184, while the sum is 40.

The square root of 42866446 is about 6547.2472077966. The cubic root of 42866446 is about 349.9767222614.

The spelling of 42866446 in words is "forty-two million, eight hundred sixty-six thousand, four hundred forty-six".