6344347380 has 192 divisors, whose sum is σ = 21892792320. Its totient is φ = 1340236800.

The previous prime is 6344347363. The next prime is 6344347381. The reversal of 6344347380 is 837434436.

It is a super-2 number, since 2×6344347380² = 80501487356225728800, which contains 22 as substring.

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 (6344347381) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 317485 + ... + 336875.

It is an arithmetic number, because the mean of its divisors is an integer number (114024960).

Almost surely, 2^6344347380 is an apocalyptic number.

6344347380 is a gapful number since it is divisible by the number (60) 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 6344347380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10946396160).

6344347380 is an abundant number, since it is smaller than the sum of its proper divisors (15548444940).

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

6344347380 is a wasteful number, since it uses less digits than its factorization.

6344347380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470 (or 19468 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The square root of 6344347380 is about 79651.4116635732. The cubic root of 6344347380 is about 1851.2382632879.

The spelling of 6344347380 in words is "six billion, three hundred forty-four million, three hundred forty-seven thousand, three hundred eighty".