16928780 has 24 divisors (see below), whose sum is σ = 38782800. Its totient is φ = 6155840.

The previous prime is 16928767. The next prime is 16928797. The reversal of 16928780 is 8782961.

It is a congruent number.

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, 38255 + ... + 38694.

It is an arithmetic number, because the mean of its divisors is an integer number (1615950).

Almost surely, 2^16928780 is an apocalyptic number.

16928780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16928780 is an abundant number, since it is smaller than the sum of its proper divisors (21854020).

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

16928780 is a wasteful number, since it uses less digits than its factorization.

16928780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76969 (or 76967 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 16928780 is about 4114.4598673459. The cubic root of 16928780 is about 256.7685845506.

The spelling of 16928780 in words is "sixteen million, nine hundred twenty-eight thousand, seven hundred eighty".