16405059 has 24 divisors (see below), whose sum is σ = 24625216. Its totient is φ = 9702000.

The previous prime is 16405057. The next prime is 16405079. The reversal of 16405059 is 95050461.

16405059 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16405059 - 2¹ = 16405057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16405057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15084 + ... + 16134.

Almost surely, 2^16405059 is an apocalyptic number.

16405059 is a deficient number, since it is larger than the sum of its proper divisors (8220157).

16405059 is a wasteful number, since it uses less digits than its factorization.

16405059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 16405059 is about 4050.3159136048. The cubic root of 16405059 is about 254.0929403410.

The spelling of 16405059 in words is "sixteen million, four hundred five thousand, fifty-nine".