16824840 has 32 divisors (see below), whose sum is σ = 50474880. Its totient is φ = 4486592.

The previous prime is 16824817. The next prime is 16824851. The reversal of 16824840 is 4842861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69984 + ... + 70223.

It is an arithmetic number, because the mean of its divisors is an integer number (1577340).

Almost surely, 2^16824840 is an apocalyptic number.

16824840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16824840 is an abundant number, since it is smaller than the sum of its proper divisors (33650040).

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

16824840 is a wasteful number, since it uses less digits than its factorization.

16824840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140221 (or 140217 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 16824840 is about 4101.8093568570. The cubic root of 16824840 is about 256.2419993536.

The spelling of 16824840 in words is "sixteen million, eight hundred twenty-four thousand, eight hundred forty".