2140424 has 32 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 897600.

The previous prime is 2140421. The next prime is 2140441. The reversal of 2140424 is 4240412.

2140424 = 215² + 216² + ... + 253².

It is not an unprimeable number, because it can be changed into a prime (2140421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^2140424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2140424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358720).

2140424 is an abundant number, since it is smaller than the sum of its proper divisors (2577016).

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

2140424 is a wasteful number, since it uses less digits than its factorization.

2140424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2140424 is about 1463.0187968717. The cubic root of 2140424 is about 128.8743844602.

Adding to 2140424 its reverse (4240412), we get a palindrome (6380836).

The spelling of 2140424 in words is "two million, one hundred forty thousand, four hundred twenty-four".