6449390 has 16 divisors (see below), whose sum is σ = 11642400. Its totient is φ = 2572320.

The previous prime is 6449363. The next prime is 6449413. The reversal of 6449390 is 939446.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6449390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3911 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (727650).

Almost surely, 2^6449390 is an apocalyptic number.

6449390 is a deficient number, since it is larger than the sum of its proper divisors (5193010).

6449390 is a wasteful number, since it uses less digits than its factorization.

6449390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 6449390 is about 2539.5649233678. The cubic root of 6449390 is about 186.1399301593.

The spelling of 6449390 in words is "six million, four hundred forty-nine thousand, three hundred ninety".