16320240 has 120 divisors (see below), whose sum is σ = 57741840. Its totient is φ = 4119552.

The previous prime is 16320223. The next prime is 16320253. The reversal of 16320240 is 4202361.

It is a happy number.

16320240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13084 + ... + 14276.

It is an arithmetic number, because the mean of its divisors is an integer number (481182).

Almost surely, 2^16320240 is an apocalyptic number.

16320240 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 16320240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28870920).

16320240 is an abundant number, since it is smaller than the sum of its proper divisors (41421600).

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

16320240 is a wasteful number, since it uses less digits than its factorization.

16320240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 16320240 is about 4039.8316796619. The cubic root of 16320240 is about 253.6542716065.

The spelling of 16320240 in words is "sixteen million, three hundred twenty thousand, two hundred forty".