2113444 has 12 divisors (see below), whose sum is σ = 3713584. Its totient is φ = 1052424.

The previous prime is 2113421. The next prime is 2113451. The reversal of 2113444 is 4443112.

It is a super-2 number, since 2×2113444² = 8933291082272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199 + ... + 2065.

2^2113444 is an apocalyptic number.

It is an amenable number.

2113444 is a deficient number, since it is larger than the sum of its proper divisors (1600140).

2113444 is a wasteful number, since it uses less digits than its factorization.

2113444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154 (or 2152 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 2113444 is about 1453.7688949761. The cubic root of 2113444 is about 128.3306069397.

Adding to 2113444 its reverse (4443112), we get a palindrome (6556556).

It can be divided in two parts, 211 and 3444, that added together give a triangular number (3655 = T₈₅).

The spelling of 2113444 in words is "two million, one hundred thirteen thousand, four hundred forty-four".