2522340 has 84 divisors (see below), whose sum is σ = 7987644. Its totient is φ = 668736.

The previous prime is 2522329. The next prime is 2522357. The reversal of 2522340 is 432252.

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 842724 = 1296^2 + 918^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 14494 + ... + 14666.

It is an arithmetic number, because the mean of its divisors is an integer number (95091).

2^2522340 is an apocalyptic number.

2522340 is a gapful number since it is divisible by the number (20) 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 2522340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3993822).

2522340 is an abundant number, since it is smaller than the sum of its proper divisors (5465304).

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

2522340 is a wasteful number, since it uses less digits than its factorization.

2522340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2522340 is about 1588.1876463441. The cubic root of 2522340 is about 136.1239498587.

Adding to 2522340 its reverse (432252), we get a palindrome (2954592).

The spelling of 2522340 in words is "two million, five hundred twenty-two thousand, three hundred forty".