16059421 has 16 divisors (see below), whose sum is σ = 18805248. Its totient is φ = 13431600.

The previous prime is 16059403. The next prime is 16059469. The reversal of 16059421 is 12495061.

16059421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16059421 - 2¹¹ = 16057373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16059421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16059721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76006 + ... + 76216.

It is an arithmetic number, because the mean of its divisors is an integer number (1175328).

Almost surely, 2^16059421 is an apocalyptic number.

It is an amenable number.

16059421 is a deficient number, since it is larger than the sum of its proper divisors (2745827).

16059421 is a wasteful number, since it uses less digits than its factorization.

16059421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 16059421 is about 4007.4207415743. The cubic root of 16059421 is about 252.2957653136.

It can be divided in two parts, 1605 and 9421, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 16059421 in words is "sixteen million, fifty-nine thousand, four hundred twenty-one".