6221479040 has 192 divisors, whose sum is σ = 17900724600. Its totient is φ = 2059223040.

The previous prime is 6221479009. The next prime is 6221479067. The reversal of 6221479040 is 409741226.

It can be written as a sum of positive squares in 4 ways, for example, as 5622600256 + 598878784 = 74984^2 + 24472^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 906020 + ... + 912860.

Almost surely, 2^6221479040 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 6221479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8950362300).

6221479040 is an abundant number, since it is smaller than the sum of its proper divisors (11679245560).

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

6221479040 is a wasteful number, since it uses less digits than its factorization.

6221479040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6903 (or 6884 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 6221479040 is about 78876.3528568607. The cubic root of 6221479040 is about 1839.2095533599.

The spelling of 6221479040 in words is "six billion, two hundred twenty-one million, four hundred seventy-nine thousand, forty".