2194880 has 56 divisors (see below), whose sum is σ = 5516880. Its totient is φ = 831744.

The previous prime is 2194879. The next prime is 2194883. The reversal of 2194880 is 884912.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194883) 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, 115511 + ... + 115529.

2^2194880 is an apocalyptic number.

2194880 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 2194880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2758440).

2194880 is an abundant number, since it is smaller than the sum of its proper divisors (3322000).

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

2194880 is an frugal number, since it uses more digits than its factorization.

2194880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2194880 is about 1481.5127404110. The cubic root of 2194880 is about 129.9581719474.

Adding to 2194880 its sum of digits (32), we get a palindrome (2194912).

The spelling of 2194880 in words is "two million, one hundred ninety-four thousand, eight hundred eighty".