16140872 has 32 divisors (see below), whose sum is σ = 33264000. Its totient is φ = 7281600.

The previous prime is 16140869. The next prime is 16140877. The reversal of 16140872 is 27804161.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16140877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12497 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (1039500).

Almost surely, 2^16140872 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 16140872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16632000).

16140872 is an abundant number, since it is smaller than the sum of its proper divisors (17123128).

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

16140872 is a wasteful number, since it uses less digits than its factorization.

16140872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 16140872 is about 4017.5704100862. The cubic root of 16140872 is about 252.7215817901.

The spelling of 16140872 in words is "sixteen million, one hundred forty thousand, eight hundred seventy-two".