16040605 has 16 divisors (see below), whose sum is σ = 23293440. Its totient is φ = 10351872.

The previous prime is 16040603. The next prime is 16040611. The reversal of 16040605 is 50604061.

It is a cyclic number.

It is not a de Polignac number, because 16040605 - 2¹ = 16040603 is a prime.

It is a super-3 number, since 3×16040605³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16040603) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 12885 + ... + 14074.

It is an arithmetic number, because the mean of its divisors is an integer number (1455840).

Almost surely, 2^16040605 is an apocalyptic number.

It is an amenable number.

16040605 is a deficient number, since it is larger than the sum of its proper divisors (7252835).

16040605 is a wasteful number, since it uses less digits than its factorization.

16040605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26988.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16040605 is about 4005.0724088336. The cubic root of 16040605 is about 252.1971928029.

Adding to 16040605 its reverse (50604061), we get a palindrome (66644666).

The spelling of 16040605 in words is "sixteen million, forty thousand, six hundred five".