16227240 has 64 divisors (see below), whose sum is σ = 50371200. Its totient is φ = 4177152.

The previous prime is 16227217. The next prime is 16227241. The reversal of 16227240 is 4272261.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16227240.

It is not an unprimeable number, because it can be changed into a prime (16227241) 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, 1149 + ... + 5811.

It is an arithmetic number, because the mean of its divisors is an integer number (787050).

Almost surely, 2^16227240 is an apocalyptic number.

16227240 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 16227240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25185600).

16227240 is an abundant number, since it is smaller than the sum of its proper divisors (34143960).

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

16227240 is a wasteful number, since it uses less digits than its factorization.

16227240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706 (or 4702 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 16227240 is about 4028.3048544022. The cubic root of 16227240 is about 253.1715418153.

The spelling of 16227240 in words is "sixteen million, two hundred twenty-seven thousand, two hundred forty".