16287280 has 20 divisors (see below), whose sum is σ = 37868112. Its totient is φ = 6514880.

The previous prime is 16287269. The next prime is 16287283. The reversal of 16287280 is 8278261.

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16287283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101716 + ... + 101875.

Almost surely, 2^16287280 is an apocalyptic number.

16287280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16287280 is an abundant number, since it is smaller than the sum of its proper divisors (21580832).

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

16287280 is a wasteful number, since it uses less digits than its factorization.

16287280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203604 (or 203598 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 16287280 is about 4035.7502400421. The cubic root of 16287280 is about 253.4833983165.

It can be divided in two parts, 16 and 287280, that added together give a square (287296 = 536²).

The spelling of 16287280 in words is "sixteen million, two hundred eighty-seven thousand, two hundred eighty".