6345390 has 32 divisors (see below), whose sum is σ = 15722496. Its totient is φ = 1637280.

The previous prime is 6345377. The next prime is 6345407. The reversal of 6345390 is 935436.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 2482 + ... + 4341.

It is an arithmetic number, because the mean of its divisors is an integer number (491328).

Almost surely, 2^6345390 is an apocalyptic number.

6345390 is an abundant number, since it is smaller than the sum of its proper divisors (9377106).

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

6345390 is a wasteful number, since it uses less digits than its factorization.

6345390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 6345390 is about 2519.0057562459. The cubic root of 6345390 is about 185.1339667588.

The spelling of 6345390 in words is "six million, three hundred forty-five thousand, three hundred ninety".