42648866 has 32 divisors (see below), whose sum is σ = 70686000. Its totient is φ = 19180800.

The previous prime is 42648829. The next prime is 42648871. The reversal of 42648866 is 66884624.

It can be written as a sum of positive squares in 8 ways, for example, as 20511841 + 22137025 = 4529^2 + 4705^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286160 + ... + 286308.

Almost surely, 2^42648866 is an apocalyptic number.

42648866 is a deficient number, since it is larger than the sum of its proper divisors (28037134).

42648866 is a wasteful number, since it uses less digits than its factorization.

42648866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374.

The product of its digits is 442368, while the sum is 44.

The square root of 42648866 is about 6530.6099255736. The cubic root of 42648866 is about 349.3835844017.

The spelling of 42648866 in words is "forty-two million, six hundred forty-eight thousand, eight hundred sixty-six".