16389800 has 96 divisors (see below), whose sum is σ = 45532800. Its totient is φ = 5364480.

The previous prime is 16389797. The next prime is 16389811. The reversal of 16389800 is 898361.

16389800 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

16389800 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31946 + ... + 32454.

It is an arithmetic number, because the mean of its divisors is an integer number (474300).

Almost surely, 2^16389800 is an apocalyptic number.

16389800 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 16389800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22766400).

16389800 is an abundant number, since it is smaller than the sum of its proper divisors (29143000).

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

16389800 is a wasteful number, since it uses less digits than its factorization.

16389800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16389800 is about 4048.4317951523. The cubic root of 16389800 is about 254.0141352416.

The spelling of 16389800 in words is "sixteen million, three hundred eighty-nine thousand, eight hundred".