2522740 has 24 divisors (see below), whose sum is σ = 5779872. Its totient is φ = 917280.

The previous prime is 2522717. The next prime is 2522743. The reversal of 2522740 is 472252.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5514 + ... + 5953.

It is an arithmetic number, because the mean of its divisors is an integer number (240828).

2^2522740 is an apocalyptic number.

2522740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2522740 is an abundant number, since it is smaller than the sum of its proper divisors (3257132).

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

2522740 is a wasteful number, since it uses less digits than its factorization.

2522740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11487 (or 11485 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 2522740 is about 1588.3135710558. The cubic root of 2522740 is about 136.1311451221.

Adding to 2522740 its reverse (472252), we get a palindrome (2994992).

It can be divided in two parts, 252 and 2740, that added together give a palindrome (2992).

The spelling of 2522740 in words is "two million, five hundred twenty-two thousand, seven hundred forty".