6390120 has 128 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 1501440.

The previous prime is 6390119. The next prime is 6390127. The reversal of 6390120 is 210936.

It is a super-2 number, since 2×6390120² = 81667267228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61989 + ... + 62091.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

Almost surely, 2^6390120 is an apocalyptic number.

6390120 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 6390120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10782720).

6390120 is an abundant number, since it is smaller than the sum of its proper divisors (15175320).

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

6390120 is a wasteful number, since it uses less digits than its factorization.

6390120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 6390120 is about 2527.8686674746. The cubic root of 6390120 is about 185.5679647692.

The spelling of 6390120 in words is "six million, three hundred ninety thousand, one hundred twenty".