16144642 has 24 divisors (see below), whose sum is σ = 26060400. Its totient is φ = 7498008.

The previous prime is 16144637. The next prime is 16144673. The reversal of 16144642 is 24644161.

It is a self number, because there is not a number n which added to its sum of digits gives 16144642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42409 + ... + 42787.

It is an arithmetic number, because the mean of its divisors is an integer number (1085850).

Almost surely, 2^16144642 is an apocalyptic number.

16144642 is a deficient number, since it is larger than the sum of its proper divisors (9915758).

16144642 is a wasteful number, since it uses less digits than its factorization.

16144642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 459 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 16144642 is about 4018.0395717315. The cubic root of 16144642 is about 252.7412561958.

The spelling of 16144642 in words is "sixteen million, one hundred forty-four thousand, six hundred forty-two".