2199528 has 64 divisors (see below), whose sum is σ = 6480000. Its totient is φ = 688896.

The previous prime is 2199523. The next prime is 2199529. The reversal of 2199528 is 8259912.

2199528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 2199492 and 2199501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3373 + ... + 3971.

It is an arithmetic number, because the mean of its divisors is an integer number (101250).

2^2199528 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 2199528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3240000).

2199528 is an abundant number, since it is smaller than the sum of its proper divisors (4280472).

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

2199528 is a wasteful number, since it uses less digits than its factorization.

2199528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 621 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2199528 is about 1483.0805777165. The cubic root of 2199528 is about 130.0498428204.

The spelling of 2199528 in words is "two million, one hundred ninety-nine thousand, five hundred twenty-eight".