16343040 has 224 divisors, whose sum is σ = 62910720. Its totient is φ = 3538944.

The previous prime is 16343023. The next prime is 16343071. The reversal of 16343040 is 4034361.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16342998 and 16343016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860151 + ... + 860169.

Almost surely, 2^16343040 is an apocalyptic number.

16343040 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 16343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31455360).

16343040 is an abundant number, since it is smaller than the sum of its proper divisors (46567680).

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

16343040 is an equidigital number, since it uses as much as digits as its factorization.

16343040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 16343040 is about 4042.6525945226. The cubic root of 16343040 is about 253.7723382180.

The spelling of 16343040 in words is "sixteen million, three hundred forty-three thousand, forty".