2521344 has 108 divisors (see below), whose sum is σ = 7922544. Its totient is φ = 709632.

The previous prime is 2521339. The next prime is 2521361. The reversal of 2521344 is 4431252.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2521344.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37599 + ... + 37665.

2^2521344 is an apocalyptic number.

2521344 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 2521344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3961272).

2521344 is an abundant number, since it is smaller than the sum of its proper divisors (5401200).

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

2521344 is an equidigital number, since it uses as much as digits as its factorization.

2521344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 79 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 2521344 is about 1587.8740504209. The cubic root of 2521344 is about 136.1060303470.

Adding to 2521344 its reverse (4431252), we get a palindrome (6952596).

It can be divided in two parts, 252 and 1344, that added together give a triangular number (1596 = T₅₆).

The spelling of 2521344 in words is "two million, five hundred twenty-one thousand, three hundred forty-four".