16340720 has 80 divisors (see below), whose sum is σ = 42854400. Its totient is φ = 5740800.

The previous prime is 16340707. The next prime is 16340729. The reversal of 16340720 is 2704361.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16340729) 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, 26981 + ... + 27579.

It is an arithmetic number, because the mean of its divisors is an integer number (535680).

Almost surely, 2^16340720 is an apocalyptic number.

16340720 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 16340720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21427200).

16340720 is an abundant number, since it is smaller than the sum of its proper divisors (26513680).

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

16340720 is a wasteful number, since it uses less digits than its factorization.

16340720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 16340720 is about 4042.3656440258. The cubic root of 16340720 is about 253.7603294427.

The spelling of 16340720 in words is "sixteen million, three hundred forty thousand, seven hundred twenty".