2526280440 has 128 divisors (see below), whose sum is σ = 7925644800. Its totient is φ = 642977280.

The previous prime is 2526280391. The next prime is 2526280441. The reversal of 2526280440 is 440826252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2526280441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1956195 + ... + 1957485.

It is an arithmetic number, because the mean of its divisors is an integer number (61919100).

Almost surely, 2^2526280440 is an apocalyptic number.

2526280440 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 2526280440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3962822400).

2526280440 is an abundant number, since it is smaller than the sum of its proper divisors (5399364360).

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

2526280440 is a wasteful number, since it uses less digits than its factorization.

2526280440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037 (or 2033 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 2526280440 is about 50262.1173449746. The cubic root of 2526280440 is about 1361.9479798400.

The spelling of 2526280440 in words is "two billion, five hundred twenty-six million, two hundred eighty thousand, four hundred forty".