16620828 has 48 divisors (see below), whose sum is σ = 45857280. Its totient is φ = 4584384.

The previous prime is 16620827. The next prime is 16620847. The reversal of 16620828 is 82802661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16620827) 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, 976 + ... + 5847.

It is an arithmetic number, because the mean of its divisors is an integer number (955360).

Almost surely, 2^16620828 is an apocalyptic number.

It is an amenable number.

16620828 is an abundant number, since it is smaller than the sum of its proper divisors (29236452).

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

16620828 is a wasteful number, since it uses less digits than its factorization.

16620828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866 (or 6864 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 16620828 is about 4076.8649720097. The cubic root of 16620828 is about 255.2020850974.

The spelling of 16620828 in words is "sixteen million, six hundred twenty thousand, eight hundred twenty-eight".