2144420 has 24 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 851552.

The previous prime is 2144419. The next prime is 2144437. The reversal of 2144420 is 244412.

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, 3281 + ... + 3879.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

2^2144420 is an apocalyptic number.

2144420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144420 is an abundant number, since it is smaller than the sum of its proper divisors (2391580).

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

2144420 is a wasteful number, since it uses less digits than its factorization.

2144420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 785 counting only the distinct ones).

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

The square root of 2144420 is about 1464.3838294655. The cubic root of 2144420 is about 128.9545339844.

Adding to 2144420 its reverse (244412), we get a palindrome (2388832).

The spelling of 2144420 in words is "two million, one hundred forty-four thousand, four hundred twenty".