2195040 has 96 divisors (see below), whose sum is σ = 7348320. Its totient is φ = 548864.

The previous prime is 2195029. The next prime is 2195047. The reversal of 2195040 is 405912.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 2194998 and 2195016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195047) 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, 8026 + ... + 8294.

It is an arithmetic number, because the mean of its divisors is an integer number (76545).

2^2195040 is an apocalyptic number.

2195040 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 2195040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3674160).

2195040 is an abundant number, since it is smaller than the sum of its proper divisors (5153280).

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

2195040 is a wasteful number, since it uses less digits than its factorization.

2195040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2195040 is about 1481.5667382875. The cubic root of 2195040 is about 129.9613297210.

The spelling of 2195040 in words is "two million, one hundred ninety-five thousand, forty".