4455645 has 16 divisors (see below), whose sum is σ = 7183680. Its totient is φ = 2358144.

The previous prime is 4455641. The next prime is 4455667. The reversal of 4455645 is 5465544.

4455645 = 663² + 664² + ... + 672².

It is not a de Polignac number, because 4455645 - 2² = 4455641 is a prime.

4455645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017 + ... + 3153.

It is an arithmetic number, because the mean of its divisors is an integer number (448980).

Almost surely, 2^4455645 is an apocalyptic number.

It is an amenable number.

4455645 is a deficient number, since it is larger than the sum of its proper divisors (2728035).

4455645 is a wasteful number, since it uses less digits than its factorization.

4455645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284.

The product of its digits is 48000, while the sum is 33.

The square root of 4455645 is about 2110.8398802372. The cubic root of 4455645 is about 164.5521371555.

The spelling of 4455645 in words is "four million, four hundred fifty-five thousand, six hundred forty-five".