2421006256 has 20 divisors (see below), whose sum is σ = 4842013504. Its totient is φ = 1171454400.

The previous prime is 2421006251. The next prime is 2421006283. The reversal of 2421006256 is 6526001242.

2421006256 is an admirable number.

It is a super-2 number, since 2×2421006256² = 11722542583182275072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2421006251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440035 + ... + 2441026.

Almost surely, 2^2421006256 is an apocalyptic number.

It is an amenable number.

2421006256 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2421006256 is a wasteful number, since it uses less digits than its factorization.

2421006256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881100 (or 4881094 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2421006256 is about 49203.7219730378. The cubic root of 2421006256 is about 1342.7607476819.

Adding to 2421006256 its reverse (6526001242), we get a palindrome (8947007498).

The spelling of 2421006256 in words is "two billion, four hundred twenty-one million, six thousand, two hundred fifty-six".