16744320 has 320 divisors, whose sum is σ = 66646800. Its totient is φ = 3981312.

The previous prime is 16744307. The next prime is 16744331. The reversal of 16744320 is 2344761.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 881271 + ... + 881289.

Almost surely, 2^16744320 is an apocalyptic number.

16744320 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 16744320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33323400).

16744320 is an abundant number, since it is smaller than the sum of its proper divisors (49902480).

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

16744320 is a wasteful number, since it uses less digits than its factorization.

16744320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 16744320 is about 4091.9824046543. The cubic root of 16744320 is about 255.8325728161.

The spelling of 16744320 in words is "sixteen million, seven hundred forty-four thousand, three hundred twenty".