16520192 has 88 divisors (see below), whose sum is σ = 38172456. Its totient is φ = 7077888.

The previous prime is 16520191. The next prime is 16520197. The reversal of 16520192 is 29102561.

It can be written as a sum of positive squares in 4 ways, for example, as 2262016 + 14258176 = 1504^2 + 3776^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16520191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226268 + ... + 226340.

Almost surely, 2^16520192 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 16520192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19086228).

16520192 is an abundant number, since it is smaller than the sum of its proper divisors (21652264).

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

16520192 is a wasteful number, since it uses less digits than its factorization.

16520192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16520192 is about 4064.5039057676. The cubic root of 16520192 is about 254.6859751022.

The spelling of 16520192 in words is "sixteen million, five hundred twenty thousand, one hundred ninety-two".