2051244 has 60 divisors (see below), whose sum is σ = 5786704. Its totient is φ = 629856.

The previous prime is 2051233. The next prime is 2051249. The reversal of 2051244 is 4421502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2051249) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3969 + ... + 4455.

2^2051244 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 2051244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2893352).

2051244 is an abundant number, since it is smaller than the sum of its proper divisors (3735460).

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

2051244 is a wasteful number, since it uses less digits than its factorization.

2051244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2051244 is about 1432.2164640863. The cubic root of 2051244 is about 127.0590999449.

Adding to 2051244 its reverse (4421502), we get a palindrome (6472746).

The spelling of 2051244 in words is "two million, fifty-one thousand, two hundred forty-four".