6390392 has 8 divisors (see below), whose sum is σ = 11982000. Its totient is φ = 3195192.

The previous prime is 6390379. The next prime is 6390401. The reversal of 6390392 is 2930936.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399392 + ... + 399407.

It is an arithmetic number, because the mean of its divisors is an integer number (1497750).

Almost surely, 2^6390392 is an apocalyptic number.

It is an amenable number.

6390392 is a deficient number, since it is larger than the sum of its proper divisors (5591608).

6390392 is a wasteful number, since it uses less digits than its factorization.

6390392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798805 (or 798801 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 6390392 is about 2527.9224671655. The cubic root of 6390392 is about 185.5705976759.

The spelling of 6390392 in words is "six million, three hundred ninety thousand, three hundred ninety-two".