2111424 has 56 divisors (see below), whose sum is σ = 6388608. Its totient is φ = 602880.

The previous prime is 2111419. The next prime is 2111443. The reversal of 2111424 is 4241112.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×2111424² = 8916222615552, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559 + ... + 2129.

2^2111424 is an apocalyptic number.

2111424 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 2111424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3194304).

2111424 is an abundant number, since it is smaller than the sum of its proper divisors (4277184).

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

2111424 is a wasteful number, since it uses less digits than its factorization.

2111424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1583 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 2111424 is about 1453.0739829754. The cubic root of 2111424 is about 128.2897083781.

Adding to 2111424 its reverse (4241112), we get a palindrome (6352536).

The spelling of 2111424 in words is "two million, one hundred eleven thousand, four hundred twenty-four".