4644645 has 32 divisors (see below), whose sum is σ = 8025600. Its totient is φ = 2286144.

The previous prime is 4644631. The next prime is 4644667. The reversal of 4644645 is 5464464.

It is not a de Polignac number, because 4644645 - 2⁶ = 4644581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12066 + ... + 12444.

It is an arithmetic number, because the mean of its divisors is an integer number (250800).

Almost surely, 2^4644645 is an apocalyptic number.

It is an amenable number.

4644645 is a deficient number, since it is larger than the sum of its proper divisors (3380955).

4644645 is a wasteful number, since it uses less digits than its factorization.

4644645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449.

The product of its digits is 46080, while the sum is 33.

The square root of 4644645 is about 2155.1438467072. The cubic root of 4644645 is about 166.8466566627.

The spelling of 4644645 in words is "four million, six hundred forty-four thousand, six hundred forty-five".