16278288 has 80 divisors (see below), whose sum is σ = 47705280. Its totient is φ = 4741632.

The previous prime is 16278287. The next prime is 16278289. The reversal of 16278288 is 88287261.

It is an interprime number because it is at equal distance from previous prime (16278287) and next prime (16278289).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16278281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11170 + ... + 12542.

It is an arithmetic number, because the mean of its divisors is an integer number (596316).

Almost surely, 2^16278288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16278288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23852640).

16278288 is an abundant number, since it is smaller than the sum of its proper divisors (31426992).

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

16278288 is a wasteful number, since it uses less digits than its factorization.

16278288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1410 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 16278288 is about 4034.6360430651. The cubic root of 16278288 is about 253.4367414099.

The spelling of 16278288 in words is "sixteen million, two hundred seventy-eight thousand, two hundred eighty-eight".