6400146 has 16 divisors (see below), whose sum is σ = 12888000. Its totient is φ = 2118768.

The previous prime is 6400139. The next prime is 6400151. The reversal of 6400146 is 6410046.

It is an Ulam 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, 2686 + ... + 4473.

It is an arithmetic number, because the mean of its divisors is an integer number (805500).

Almost surely, 2^6400146 is an apocalyptic number.

6400146 is an abundant number, since it is smaller than the sum of its proper divisors (6487854).

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

6400146 is a wasteful number, since it uses less digits than its factorization.

6400146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 6400146 is about 2529.8509837538. The cubic root of 6400146 is about 185.6649651504.

The spelling of 6400146 in words is "six million, four hundred thousand, one hundred forty-six".