4555845 has 40 divisors (see below), whose sum is σ = 9339264. Its totient is φ = 2081376.

The previous prime is 4555843. The next prime is 4555867. The reversal of 4555845 is 5485554.

It is not a de Polignac number, because 4555845 - 2¹ = 4555843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4555843) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2032 + ... + 3638.

Almost surely, 2^4555845 is an apocalyptic number.

4555845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4555845 is an abundant number, since it is smaller than the sum of its proper divisors (4783419).

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

4555845 is a wasteful number, since it uses less digits than its factorization.

4555845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1622 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 4555845 is about 2134.4425501756. The cubic root of 4555845 is about 165.7765052513.

The spelling of 4555845 in words is "four million, five hundred fifty-five thousand, eight hundred forty-five".