2528340 has 24 divisors (see below), whose sum is σ = 7079520. Its totient is φ = 674208.

The previous prime is 2528299. The next prime is 2528353. The reversal of 2528340 is 438252.

It is a self number, because there is not a number n which added to its sum of digits gives 2528340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21010 + ... + 21129.

It is an arithmetic number, because the mean of its divisors is an integer number (294980).

2^2528340 is an apocalyptic number.

2528340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2528340 is an abundant number, since it is smaller than the sum of its proper divisors (4551180).

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

2528340 is a wasteful number, since it uses less digits than its factorization.

2528340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42151 (or 42149 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2528340 is about 1590.0754699070. The cubic root of 2528340 is about 136.2317990445.

The spelling of 2528340 in words is "two million, five hundred twenty-eight thousand, three hundred forty".