2111444 has 12 divisors (see below), whose sum is σ = 3722964. Its totient is φ = 1047744.

The previous prime is 2111443. The next prime is 2111453. The reversal of 2111444 is 4441112.

It can be written as a sum of positive squares in 2 ways, for example, as 1795600 + 315844 = 1340^2 + 562^2 .

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379 + ... + 2474.

It is an arithmetic number, because the mean of its divisors is an integer number (310247).

2^2111444 is an apocalyptic number.

It is an amenable number.

2111444 is a deficient number, since it is larger than the sum of its proper divisors (1611520).

2111444 is a wasteful number, since it uses less digits than its factorization.

2111444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994 (or 3992 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 2111444 is about 1453.0808649212. The cubic root of 2111444 is about 128.2901134422.

Adding to 2111444 its reverse (4441112), we get a palindrome (6552556).

The spelling of 2111444 in words is "two million, one hundred eleven thousand, four hundred forty-four".