2194720 has 96 divisors (see below), whose sum is σ = 5987520. Its totient is φ = 752640.

The previous prime is 2194697. The next prime is 2194721. The reversal of 2194720 is 274912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51019 + ... + 51061.

It is an arithmetic number, because the mean of its divisors is an integer number (62370).

2^2194720 is an apocalyptic number.

2194720 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 2194720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2993760).

2194720 is an abundant number, since it is smaller than the sum of its proper divisors (3792800).

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

2194720 is a wasteful number, since it uses less digits than its factorization.

2194720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2194720 is about 1481.4587405662. The cubic root of 2194720 is about 129.9550140204.

The spelling of 2194720 in words is "two million, one hundred ninety-four thousand, seven hundred twenty".