16539264 has 144 divisors (see below), whose sum is σ = 55552770. Its totient is φ = 4709376.

The previous prime is 16539239. The next prime is 16539269. The reversal of 16539264 is 46293561.

It is a happy number.

16539264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10188864 + 6350400 = 3192^2 + 2520^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (16539269) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56302 + ... + 56594.

Almost surely, 2^16539264 is an apocalyptic number.

16539264 is a gapful number since it is divisible by the number (14) 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 16539264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27776385).

16539264 is an abundant number, since it is smaller than the sum of its proper divisors (39013506).

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

16539264 is a wasteful number, since it uses less digits than its factorization.

16539264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 305 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 16539264 is about 4066.8493948018. The cubic root of 16539264 is about 254.7839461769.

The spelling of 16539264 in words is "sixteen million, five hundred thirty-nine thousand, two hundred sixty-four".