6390380 has 12 divisors (see below), whose sum is σ = 13419840. Its totient is φ = 2556144.

The previous prime is 6390379. The next prime is 6390401. The reversal of 6390380 is 830936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159740 + ... + 159779.

It is an arithmetic number, because the mean of its divisors is an integer number (1118320).

Almost surely, 2^6390380 is an apocalyptic number.

It is an amenable number.

6390380 is an abundant number, since it is smaller than the sum of its proper divisors (7029460).

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

6390380 is a wasteful number, since it uses less digits than its factorization.

6390380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319528 (or 319526 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 6390380 is about 2527.9200936738. The cubic root of 6390380 is about 185.5704815199.

The spelling of 6390380 in words is "six million, three hundred ninety thousand, three hundred eighty".