2522840 has 32 divisors (see below), whose sum is σ = 5778000. Its totient is φ = 991104.

The previous prime is 2522837. The next prime is 2522867. The reversal of 2522840 is 482252.

It is a congruent number.

It is an unprimeable number.

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, 1826 + ... + 2894.

2^2522840 is an apocalyptic number.

2522840 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 2522840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2889000).

2522840 is an abundant number, since it is smaller than the sum of its proper divisors (3255160).

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

2522840 is a wasteful number, since it uses less digits than its factorization.

2522840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2522840 is about 1588.3450506738. The cubic root of 2522840 is about 136.1329438191.

The spelling of 2522840 in words is "two million, five hundred twenty-two thousand, eight hundred forty".