2192240 has 40 divisors (see below), whose sum is σ = 5185680. Its totient is φ = 861696.

The previous prime is 2192207. The next prime is 2192243. The reversal of 2192240 is 422912.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192243) 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, 5156 + ... + 5564.

It is an arithmetic number, because the mean of its divisors is an integer number (129642).

2^2192240 is an apocalyptic number.

2192240 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 2192240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592840).

2192240 is an abundant number, since it is smaller than the sum of its proper divisors (2993440).

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

2192240 is a wasteful number, since it uses less digits than its factorization.

2192240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2192240 is about 1480.6214911313. The cubic root of 2192240 is about 129.9060465128.

The spelling of 2192240 in words is "two million, one hundred ninety-two thousand, two hundred forty".