6220662444 has 72 divisors (see below), whose sum is σ = 16377143328. Its totient is φ = 1989066240.

The previous prime is 6220662439. The next prime is 6220662449. The reversal of 6220662444 is 4442660226.

6220662444 is a `hidden beast` number, since 6 + 2 + 20 + 6 + 624 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (6220662439) and next prime (6220662449).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6220662399 and 6220662408.

It is not an unprimeable number, because it can be changed into a prime (6220662449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61684 + ... + 127460.

It is an arithmetic number, because the mean of its divisors is an integer number (227460324).

Almost surely, 2^6220662444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6220662444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8188571664).

6220662444 is an abundant number, since it is smaller than the sum of its proper divisors (10156480884).

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

6220662444 is a wasteful number, since it uses less digits than its factorization.

6220662444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65895 (or 65890 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 6220662444 is about 78871.1762559682. The cubic root of 6220662444 is about 1839.1290817727.

The spelling of 6220662444 in words is "six billion, two hundred twenty million, six hundred sixty-two thousand, four hundred forty-four".