4390444 has 24 divisors (see below), whose sum is σ = 8290800. Its totient is φ = 2027520.

The previous prime is 4390433. The next prime is 4390453. The reversal of 4390444 is 4440934.

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, 2412 + ... + 3820.

It is an arithmetic number, because the mean of its divisors is an integer number (345450).

Almost surely, 2^4390444 is an apocalyptic number.

It is an amenable number.

4390444 is a deficient number, since it is larger than the sum of its proper divisors (3900356).

4390444 is a wasteful number, since it uses less digits than its factorization.

4390444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4390444 is about 2095.3386361159. The cubic root of 4390444 is about 163.7455403482.

The spelling of 4390444 in words is "four million, three hundred ninety thousand, four hundred forty-four".