16272520 has 64 divisors (see below), whose sum is σ = 41264640. Its totient is φ = 5721600.

The previous prime is 16272517. The next prime is 16272527. The reversal of 16272520 is 2527261.

It is not an unprimeable number, because it can be changed into a prime (16272527) 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, 13044 + ... + 14236.

It is an arithmetic number, because the mean of its divisors is an integer number (644760).

Almost surely, 2^16272520 is an apocalyptic number.

16272520 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 16272520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20632320).

16272520 is an abundant number, since it is smaller than the sum of its proper divisors (24992120).

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

16272520 is a wasteful number, since it uses less digits than its factorization.

16272520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 16272520 is about 4033.9211692843. The cubic root of 16272520 is about 253.4068038673.

Adding to 16272520 its reverse (2527261), we get a palindrome (18799781).

The spelling of 16272520 in words is "sixteen million, two hundred seventy-two thousand, five hundred twenty".