16887340 has 24 divisors (see below), whose sum is σ = 35541072. Its totient is φ = 6740160.

The previous prime is 16887331. The next prime is 16887361. The reversal of 16887340 is 4378861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16887340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16030 + ... + 17050.

It is an arithmetic number, because the mean of its divisors is an integer number (1480878).

Almost surely, 2^16887340 is an apocalyptic number.

16887340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16887340 is an abundant number, since it is smaller than the sum of its proper divisors (18653732).

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

16887340 is a wasteful number, since it uses less digits than its factorization.

16887340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1855 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 16887340 is about 4109.4208837743. The cubic root of 16887340 is about 256.5588985550.

The spelling of 16887340 in words is "sixteen million, eight hundred eighty-seven thousand, three hundred forty".