6445612242 has 24 divisors (see below), whose sum is σ = 14262633216. Its totient is φ = 2102823576.

The previous prime is 6445612223. The next prime is 6445612279. The reversal of 6445612242 is 2422165446.

6445612242 is a `hidden beast` number, since 644 + 5 + 6 + 1 + 2 + 2 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6445612197 and 6445612206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3808618 + ... + 3810309.

It is an arithmetic number, because the mean of its divisors is an integer number (594276384).

Almost surely, 2^6445612242 is an apocalyptic number.

6445612242 is an abundant number, since it is smaller than the sum of its proper divisors (7817020974).

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

6445612242 is a wasteful number, since it uses less digits than its factorization.

6445612242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618982 (or 7618979 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 6445612242 is about 80284.5703855978. The cubic root of 6445612242 is about 1861.0357897183.

Adding to 6445612242 its reverse (2422165446), we get a palindrome (8867777688).

The spelling of 6445612242 in words is "six billion, four hundred forty-five million, six hundred twelve thousand, two hundred forty-two".