16305240 has 192 divisors, whose sum is σ = 59097600. Its totient is φ = 3585792.

The previous prime is 16305217. The next prime is 16305251. The reversal of 16305240 is 4250361.

It is a happy number.

16305240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276331 + ... + 276389.

It is an arithmetic number, because the mean of its divisors is an integer number (307800).

Almost surely, 2^16305240 is an apocalyptic number.

16305240 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 16305240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29548800).

16305240 is an abundant number, since it is smaller than the sum of its proper divisors (42792360).

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

16305240 is a wasteful number, since it uses less digits than its factorization.

16305240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 16305240 is about 4037.9747398913. The cubic root of 16305240 is about 253.5765362231.

The spelling of 16305240 in words is "sixteen million, three hundred five thousand, two hundred forty".