6390657000 has 1152 divisors, whose sum is σ = 29286915840. Its totient is φ = 1269043200.

The previous prime is 6390656989. The next prime is 6390657001. The reversal of 6390657000 is 7560936.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390657001) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 375920992 + ... + 375921008.

It is an arithmetic number, because the mean of its divisors is an integer number (25422670).

Almost surely, 2^6390657000 is an apocalyptic number.

6390657000 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 6390657000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14643457920).

6390657000 is an abundant number, since it is smaller than the sum of its proper divisors (22896258840).

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

6390657000 is a wasteful number, since it uses less digits than its factorization.

6390657000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 6390657000 is about 79941.5849229924. The cubic root of 6390657000 is about 1855.7316275220.

The spelling of 6390657000 in words is "six billion, three hundred ninety million, six hundred fifty-seven thousand".