2196528840 has 160 divisors (see below), whose sum is σ = 8054069760. Its totient is φ = 532483200.

The previous prime is 2196528787. The next prime is 2196528863. The reversal of 2196528840 is 488256912.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4825 + ... + 66455.

It is an arithmetic number, because the mean of its divisors is an integer number (50337936).

Almost surely, 2^2196528840 is an apocalyptic number.

2196528840 is a gapful number since it is divisible by the number (20) 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 2196528840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4027034880).

2196528840 is an abundant number, since it is smaller than the sum of its proper divisors (5857540920).

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

2196528840 is a wasteful number, since it uses less digits than its factorization.

2196528840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61665 (or 61652 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2196528840 is about 46867.1403010681. The cubic root of 2196528840 is about 1299.9070623895.

It can be divided in two parts, 21965 and 28840, that added together give a palindrome (50805).

The spelling of 2196528840 in words is "two billion, one hundred ninety-six million, five hundred twenty-eight thousand, eight hundred forty".