4445816 has 16 divisors (see below), whose sum is σ = 8623800. Its totient is φ = 2146144.

The previous prime is 4445797. The next prime is 4445821. The reversal of 4445816 is 6185444.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9350 + ... + 9813.

Almost surely, 2^4445816 is an apocalyptic number.

It is an amenable number.

4445816 is a deficient number, since it is larger than the sum of its proper divisors (4177984).

4445816 is a wasteful number, since it uses less digits than its factorization.

4445816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19198 (or 19194 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 4445816 is about 2108.5103746484. The cubic root of 4445816 is about 164.4310492836.

The spelling of 4445816 in words is "four million, four hundred forty-five thousand, eight hundred sixteen".