16929880 has 64 divisors (see below), whose sum is σ = 42055200. Its totient is φ = 6082560.

The previous prime is 16929877. The next prime is 16929889. The reversal of 16929880 is 8892961.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16929889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47784 + ... + 48136.

Almost surely, 2^16929880 is an apocalyptic number.

16929880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16929880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21027600).

16929880 is an abundant number, since it is smaller than the sum of its proper divisors (25125320).

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

16929880 is a wasteful number, since it uses less digits than its factorization.

16929880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 16929880 is about 4114.5935400717. The cubic root of 16929880 is about 256.7741458753.

The spelling of 16929880 in words is "sixteen million, nine hundred twenty-nine thousand, eight hundred eighty".