16319800 has 48 divisors (see below), whose sum is σ = 43367760. Its totient is φ = 5594880.

The previous prime is 16319789. The next prime is 16319801. The reversal of 16319800 is 891361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16319801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4429 + ... + 7228.

It is an arithmetic number, because the mean of its divisors is an integer number (903495).

Almost surely, 2^16319800 is an apocalyptic number.

16319800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16319800 is an abundant number, since it is smaller than the sum of its proper divisors (27047960).

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

16319800 is a wasteful number, since it uses less digits than its factorization.

16319800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11680 (or 11671 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 16319800 is about 4039.7772215804. Note that the first 3 decimals coincide. The cubic root of 16319800 is about 253.6519920468.

The spelling of 16319800 in words is "sixteen million, three hundred nineteen thousand, eight hundred".