2421568 has 28 divisors (see below), whose sum is σ = 4855972. Its totient is φ = 1198080.

The previous prime is 2421553. The next prime is 2421577. The reversal of 2421568 is 8651242.

It can be written as a sum of positive squares in 2 ways, for example, as 1272384 + 1149184 = 1128^2 + 1072^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9928 + ... + 10168.

2^2421568 is an apocalyptic number.

It is an amenable number.

2421568 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2421568 is a wasteful number, since it uses less digits than its factorization.

2421568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 400 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 2421568 is about 1556.1388112890. The cubic root of 2421568 is about 134.2864592858.

It can be divided in two parts, 242 and 1568, that multiplied together give a square (379456 = 616²).

The spelling of 2421568 in words is "two million, four hundred twenty-one thousand, five hundred sixty-eight".