16028240 has 80 divisors (see below), whose sum is σ = 40283136. Its totient is φ = 5913600.

The previous prime is 16028237. The next prime is 16028249. The reversal of 16028240 is 4282061.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16028249) 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, 56900 + ... + 57180.

Almost surely, 2^16028240 is an apocalyptic number.

16028240 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 16028240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20141568).

16028240 is an abundant number, since it is smaller than the sum of its proper divisors (24254896).

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

16028240 is a wasteful number, since it uses less digits than its factorization.

16028240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 16028240 is about 4003.5284437606. The cubic root of 16028240 is about 252.1323735538.

The spelling of 16028240 in words is "sixteen million, twenty-eight thousand, two hundred forty".