2196400 has 90 divisors (see below), whose sum is σ = 5900540. Its totient is φ = 783360.

The previous prime is 2196377. The next prime is 2196401. The reversal of 2196400 is 46912.

It is not an unprimeable number, because it can be changed into a prime (2196401) 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, 115591 + ... + 115609.

2^2196400 is an apocalyptic number.

2196400 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 2196400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2950270).

2196400 is an abundant number, since it is smaller than the sum of its proper divisors (3704140).

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

2196400 is a wasteful number, since it uses less digits than its factorization.

2196400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2196400 is about 1482.0256408038. The cubic root of 2196400 is about 129.9881646030.

The spelling of 2196400 in words is "two million, one hundred ninety-six thousand, four hundred".