6409388 has 6 divisors (see below), whose sum is σ = 11216436. Its totient is φ = 3204692.

The previous prime is 6409379. The next prime is 6409393. The reversal of 6409388 is 8839046.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801170 + ... + 801177.

It is an arithmetic number, because the mean of its divisors is an integer number (1869406).

Almost surely, 2^6409388 is an apocalyptic number.

It is an amenable number.

6409388 is a deficient number, since it is larger than the sum of its proper divisors (4807048).

6409388 is a wasteful number, since it uses less digits than its factorization.

6409388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602351 (or 1602349 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 6409388 is about 2531.6769146161. The cubic root of 6409388 is about 185.7542907338.

The spelling of 6409388 in words is "six million, four hundred nine thousand, three hundred eighty-eight".