16317880 has 16 divisors (see below), whose sum is σ = 36715320. Its totient is φ = 6527136.

The previous prime is 16317871. The next prime is 16317887. The reversal of 16317880 is 8871361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16317887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203934 + ... + 204013.

Almost surely, 2^16317880 is an apocalyptic number.

16317880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16317880 is an abundant number, since it is smaller than the sum of its proper divisors (20397440).

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

16317880 is a wasteful number, since it uses less digits than its factorization.

16317880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407958 (or 407954 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 16317880 is about 4039.5395777242. The cubic root of 16317880 is about 253.6420443979.

The spelling of 16317880 in words is "sixteen million, three hundred seventeen thousand, eight hundred eighty".