16456144 has 10 divisors (see below), whose sum is σ = 31883810. Its totient is φ = 8228064.

The previous prime is 16456123. The next prime is 16456151. The reversal of 16456144 is 44165461.

It can be written as a sum of positive squares in only one way, i.e., 16096144 + 360000 = 4012^2 + 600^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514239 + ... + 514270.

It is an arithmetic number, because the mean of its divisors is an integer number (3188381).

Almost surely, 2^16456144 is an apocalyptic number.

It is an amenable number.

16456144 is a deficient number, since it is larger than the sum of its proper divisors (15427666).

16456144 is a wasteful number, since it uses less digits than its factorization.

16456144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028517 (or 1028511 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 16456144 is about 4056.6173100257. The cubic root of 16456144 is about 254.3564136923.

The spelling of 16456144 in words is "sixteen million, four hundred fifty-six thousand, one hundred forty-four".