16940055 has 16 divisors (see below), whose sum is σ = 29568384. Its totient is φ = 8213280.

The previous prime is 16940009. The next prime is 16940057. The reversal of 16940055 is 55004961.

It is not a de Polignac number, because 16940055 - 2¹¹ = 16938007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16940057) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 51169 + ... + 51498.

It is an arithmetic number, because the mean of its divisors is an integer number (1848024).

Almost surely, 2^16940055 is an apocalyptic number.

16940055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16940055 is a deficient number, since it is larger than the sum of its proper divisors (12628329).

16940055 is a wasteful number, since it uses less digits than its factorization.

16940055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102686.

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

The square root of 16940055 is about 4115.8298069770. The cubic root of 16940055 is about 256.8255767122.

The spelling of 16940055 in words is "sixteen million, nine hundred forty thousand, fifty-five".