2540220452 has 96 divisors (see below), whose sum is σ = 5627725824. Its totient is φ = 974592000.

The previous prime is 2540220439. The next prime is 2540220481.

2540220452 is nontrivially palindromic in base 10.

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 31 ways as a sum of consecutive naturals, for example, 8975903 + ... + 8976185.

It is an arithmetic number, because the mean of its divisors is an integer number (58622144).

Almost surely, 2^2540220452 is an apocalyptic number.

2540220452 is a gapful number since it is divisible by the number (22) 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 2540220452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2813862912).

2540220452 is an abundant number, since it is smaller than the sum of its proper divisors (3087505372).

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

2540220452 is a wasteful number, since it uses less digits than its factorization.

2540220452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 2540220452 is about 50400.5997186541. The cubic root of 2540220452 is about 1364.4484619396.

It can be divided in two parts, 25402 and 20452, that added together give a palindrome (45854).

The spelling of 2540220452 in words is "two billion, five hundred forty million, two hundred twenty thousand, four hundred fifty-two".