16426444 has 12 divisors (see below), whose sum is σ = 28862568. Its totient is φ = 8180000.

The previous prime is 16426433. The next prime is 16426477. The reversal of 16426444 is 44462461.

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, 7177 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (2405214).

Almost surely, 2^16426444 is an apocalyptic number.

It is an amenable number.

16426444 is a deficient number, since it is larger than the sum of its proper divisors (12436124).

16426444 is a wasteful number, since it uses less digits than its factorization.

16426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16616 (or 16614 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 16426444 is about 4052.9549713758. The cubic root of 16426444 is about 254.2033009752.

The spelling of 16426444 in words is "sixteen million, four hundred twenty-six thousand, four hundred forty-four".