6140446320 has 80 divisors (see below), whose sum is σ = 19065020832. Its totient is φ = 1634903040.

The previous prime is 6140446309. The next prime is 6140446339. The reversal of 6140446320 is 236440416.

It is a Cunningham number, because it is equal to 78361²-1.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137130 + ... + 176310.

Almost surely, 2^6140446320 is an apocalyptic number.

6140446320 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 6140446320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9532510416).

6140446320 is an abundant number, since it is smaller than the sum of its proper divisors (12924574512).

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

6140446320 is a wasteful number, since it uses less digits than its factorization.

6140446320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39850 (or 39844 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 6140446320 is about 78360.9999936193. Note that the first 5 decimals coincide. The cubic root of 6140446320 is about 1831.1895994864.

Adding to 6140446320 its reverse (236440416), we get a palindrome (6376886736).

The spelling of 6140446320 in words is "six billion, one hundred forty million, four hundred forty-six thousand, three hundred twenty".