6220381398 has 64 divisors (see below), whose sum is σ = 15534858240. Its totient is φ = 1613152800.

The previous prime is 6220381397. The next prime is 6220381403. The reversal of 6220381398 is 8931830226.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220381393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294243 + ... + 314673.

It is an arithmetic number, because the mean of its divisors is an integer number (242732160).

Almost surely, 2^6220381398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6220381398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7767429120).

6220381398 is an abundant number, since it is smaller than the sum of its proper divisors (9314476842).

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

6220381398 is a wasteful number, since it uses less digits than its factorization.

6220381398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21113.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 6220381398 is about 78869.3945583456. The cubic root of 6220381398 is about 1839.1013844194.

The spelling of 6220381398 in words is "six billion, two hundred twenty million, three hundred eighty-one thousand, three hundred ninety-eight".