4640146 has 16 divisors (see below), whose sum is σ = 7983360. Its totient is φ = 1981440.

The previous prime is 4640143. The next prime is 4640147. The reversal of 4640146 is 6410464.

It is a self number, because there is not a number n which added to its sum of digits gives 4640146.

It is not an unprimeable number, because it can be changed into a prime (4640143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5650 + ... + 6418.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^4640146 is an apocalyptic number.

4640146 is a deficient number, since it is larger than the sum of its proper divisors (3343214).

4640146 is a wasteful number, since it uses less digits than its factorization.

4640146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4640146 is about 2154.0998119864. The cubic root of 4640146 is about 166.7927676783.

The spelling of 4640146 in words is "four million, six hundred forty thousand, one hundred forty-six".