16308864 has 240 divisors, whose sum is σ = 57452010. Its totient is φ = 4561920.

The previous prime is 16308847. The next prime is 16308871. The reversal of 16308864 is 46880361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15681600 + 627264 = 3960^2 + 792^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1254522 + ... + 1254534.

Almost surely, 2^16308864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16308864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28726005).

16308864 is an abundant number, since it is smaller than the sum of its proper divisors (41143146).

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

16308864 is a wasteful number, since it uses less digits than its factorization.

16308864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 16308864 is about 4038.4234547655. The cubic root of 16308864 is about 253.5953214580.

The spelling of 16308864 in words is "sixteen million, three hundred eight thousand, eight hundred sixty-four".