2540322 has 24 divisors (see below), whose sum is σ = 5708976. Its totient is φ = 846612.

The previous prime is 2540269. The next prime is 2540323. The reversal of 2540322 is 2230452.

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

It is a junction number, because it is equal to n+sod(n) for n = 2540295 and 2540304.

It is not an unprimeable number, because it can be changed into a prime (2540323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2128 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (237874).

2^2540322 is an apocalyptic number.

2540322 is an abundant number, since it is smaller than the sum of its proper divisors (3168654).

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

2540322 is an equidigital number, since it uses as much as digits as its factorization.

2540322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5244 (or 5232 counting only the distinct ones).

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

The square root of 2540322 is about 1593.8387622341. The cubic root of 2540322 is about 136.4466643454.

Adding to 2540322 its reverse (2230452), we get a palindrome (4770774).

It can be divided in two parts, 25403 and 22, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 2540322 in words is "two million, five hundred forty thousand, three hundred twenty-two".