16891960 has 32 divisors (see below), whose sum is σ = 38147760. Its totient is φ = 6731776.

The previous prime is 16891957. The next prime is 16891961. The reversal of 16891960 is 6919861.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16891961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13272 + ... + 14488.

Almost surely, 2^16891960 is an apocalyptic number.

16891960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16891960 is an abundant number, since it is smaller than the sum of its proper divisors (21255800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16891960 is a wasteful number, since it uses less digits than its factorization.

16891960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 16891960 is about 4109.9829683345. The cubic root of 16891960 is about 256.5822926881.

The spelling of 16891960 in words is "sixteen million, eight hundred ninety-one thousand, nine hundred sixty".