2540220450 has 48 divisors (see below), whose sum is σ = 6303914976. Its totient is φ = 676944000.

The previous prime is 2540220439. The next prime is 2540220481. The reversal of 2540220450 is 540220452.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2540220450.

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 23 ways as a sum of consecutive naturals, for example, 265449 + ... + 274851.

It is an arithmetic number, because the mean of its divisors is an integer number (131331562).

Almost surely, 2^2540220450 is an apocalyptic number.

2540220450 is an abundant number, since it is smaller than the sum of its proper divisors (3763694526).

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

2540220450 is a wasteful number, since it uses less digits than its factorization.

2540220450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11219 (or 11214 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2540220450 is about 50400.5996988131. The cubic root of 2540220450 is about 1364.4484615815.

The spelling of 2540220450 in words is "two billion, five hundred forty million, two hundred twenty thousand, four hundred fifty".