6244446464 has 36 divisors (see below), whose sum is σ = 12490344384. Its totient is φ = 3115749888.

The previous prime is 6244446421. The next prime is 6244446469. The reversal of 6244446464 is 4646444426.

It is a happy number.

It is a super-2 number, since 2×6244446464² = 77986223283524206592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6244446469) 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, 99629 + ... + 149715.

Almost surely, 2^6244446464 is an apocalyptic number.

6244446464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6244446464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6245172192).

6244446464 is an abundant number, since it is smaller than the sum of its proper divisors (6245897920).

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

6244446464 is an equidigital number, since it uses as much as digits as its factorization.

6244446464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50590 (or 50576 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 44.

The square root of 6244446464 is about 79021.8100526684. The cubic root of 6244446464 is about 1841.4700036032.

The spelling of 6244446464 in words is "six billion, two hundred forty-four million, four hundred forty-six thousand, four hundred sixty-four".