16740505 has 16 divisors (see below), whose sum is σ = 20772864. Its totient is φ = 12942720.

The previous prime is 16740497. The next prime is 16740517. The reversal of 16740505 is 50504761.

It is not a de Polignac number, because 16740505 - 2³ = 16740497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25714 + ... + 26356.

It is an arithmetic number, because the mean of its divisors is an integer number (1298304).

Almost surely, 2^16740505 is an apocalyptic number.

It is an amenable number.

16740505 is a deficient number, since it is larger than the sum of its proper divisors (4032359).

16740505 is a wasteful number, since it uses less digits than its factorization.

16740505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 16740505 is about 4091.5162226246. The cubic root of 16740505 is about 255.8131418409.

The spelling of 16740505 in words is "sixteen million, seven hundred forty thousand, five hundred five".