2406221256 has 64 divisors (see below), whose sum is σ = 6338404800. Its totient is φ = 759110400.

The previous prime is 2406221227. The next prime is 2406221281. The reversal of 2406221256 is 6521226042.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627826 + ... + 631646.

It is an arithmetic number, because the mean of its divisors is an integer number (99037575).

Almost surely, 2^2406221256 is an apocalyptic number.

It is an amenable number.

2406221256 is an abundant number, since it is smaller than the sum of its proper divisors (3932183544).

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

2406221256 is a wasteful number, since it uses less digits than its factorization.

2406221256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5230 (or 5226 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2406221256 is about 49053.2491890191. The cubic root of 2406221256 is about 1340.0217669294.

Adding to 2406221256 its reverse (6521226042), we get a palindrome (8927447298).

The spelling of 2406221256 in words is "two billion, four hundred six million, two hundred twenty-one thousand, two hundred fifty-six".