16011840 has 112 divisors (see below), whose sum is σ = 54790848. Its totient is φ = 3938304.

The previous prime is 16011823. The next prime is 16011847. The reversal of 16011840 is 4811061.

It is not an unprimeable number, because it can be changed into a prime (16011847) 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, 11839 + ... + 13121.

It is an arithmetic number, because the mean of its divisors is an integer number (489204).

Almost surely, 2^16011840 is an apocalyptic number.

16011840 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 16011840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27395424).

16011840 is an abundant number, since it is smaller than the sum of its proper divisors (38779008).

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

16011840 is a wasteful number, since it uses less digits than its factorization.

16011840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 16011840 is about 4001.4797263013. The cubic root of 16011840 is about 252.0463507586.

The spelling of 16011840 in words is "sixteen million, eleven thousand, eight hundred forty".