2190144 has 112 divisors (see below), whose sum is σ = 6803136. Its totient is φ = 614400.

The previous prime is 2190143. The next prime is 2190157. The reversal of 2190144 is 4410912.

It is a self number, because there is not a number n which added to its sum of digits gives 2190144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190143) 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, 35874 + ... + 35934.

2^2190144 is an apocalyptic number.

2190144 is a gapful number since it is divisible by the number (24) 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 2190144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3401568).

2190144 is an abundant number, since it is smaller than the sum of its proper divisors (4612992).

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

2190144 is a wasteful number, since it uses less digits than its factorization.

2190144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2190144 is about 1479.9135109864. The cubic root of 2190144 is about 129.8646322674.

It can be divided in two parts, 21901 and 44, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 2190144 in words is "two million, one hundred ninety thousand, one hundred forty-four".