2562421340 has 24 divisors (see below), whose sum is σ = 5382872880. Its totient is φ = 1024627968.

The previous prime is 2562421319. The next prime is 2562421349. The reversal of 2562421340 is 431242652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2562421349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45524 + ... + 84836.

It is an arithmetic number, because the mean of its divisors is an integer number (224286370).

Almost surely, 2^2562421340 is an apocalyptic number.

2562421340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2562421340 is an abundant number, since it is smaller than the sum of its proper divisors (2820451540).

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

2562421340 is a wasteful number, since it uses less digits than its factorization.

2562421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42581 (or 42579 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2562421340 is about 50620.3648742282. The cubic root of 2562421340 is about 1368.4119165553.

Adding to 2562421340 its reverse (431242652), we get a palindrome (2993663992).

It can be divided in two parts, 25624 and 21340, that added together give a palindrome (46964).

The spelling of 2562421340 in words is "two billion, five hundred sixty-two million, four hundred twenty-one thousand, three hundred forty".