16013140 has 72 divisors (see below), whose sum is σ = 39884040. Its totient is φ = 5364480.

The previous prime is 16013113. The next prime is 16013141. The reversal of 16013140 is 4131061.

It can be written as a sum of positive squares in 4 ways, for example, as 1359556 + 14653584 = 1166^2 + 3828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16013141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31206 + ... + 31714.

It is an arithmetic number, because the mean of its divisors is an integer number (553945).

Almost surely, 2^16013140 is an apocalyptic number.

16013140 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 16013140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19942020).

16013140 is an abundant number, since it is smaller than the sum of its proper divisors (23870900).

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

16013140 is a wasteful number, since it uses less digits than its factorization.

16013140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 16013140 is about 4001.6421629126. The cubic root of 16013140 is about 252.0531717816.

The spelling of 16013140 in words is "sixteen million, thirteen thousand, one hundred forty".