16288000 has 72 divisors (see below), whose sum is σ = 40655160. Its totient is φ = 6502400.

The previous prime is 16287977. The next prime is 16288007. The reversal of 16288000 is 88261.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 16257024 = 176^2 + 4032^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (16288007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31746 + ... + 32254.

It is an arithmetic number, because the mean of its divisors is an integer number (564655).

Almost surely, 2^16288000 is an apocalyptic number.

16288000 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 16288000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20327580).

16288000 is an abundant number, since it is smaller than the sum of its proper divisors (24367160).

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

16288000 is an frugal number, since it uses more digits than its factorization.

16288000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 16288000 is about 4035.8394418014. The cubic root of 16288000 is about 253.4871334472.

The spelling of 16288000 in words is "sixteen million, two hundred eighty-eight thousand".