16091894 has 48 divisors (see below), whose sum is σ = 32060448. Its totient is φ = 5983488.

The previous prime is 16091869. The next prime is 16091899. The reversal of 16091894 is 49819061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16091899) 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, 21287 + ... + 22029.

It is an arithmetic number, because the mean of its divisors is an integer number (667926).

Almost surely, 2^16091894 is an apocalyptic number.

16091894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16091894 is a deficient number, since it is larger than the sum of its proper divisors (15968554).

16091894 is a wasteful number, since it uses less digits than its factorization.

16091894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 16091894 is about 4011.4703040157. The cubic root of 16091894 is about 252.4657026252.

The spelling of 16091894 in words is "sixteen million, ninety-one thousand, eight hundred ninety-four".