4521849 has 16 divisors (see below), whose sum is σ = 6256320. Its totient is φ = 2903040.

The previous prime is 4521841. The next prime is 4521863. The reversal of 4521849 is 9481254.

It is not a de Polignac number, because 4521849 - 2³ = 4521841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4521841) 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, 11742 + ... + 12120.

It is an arithmetic number, because the mean of its divisors is an integer number (391020).

Almost surely, 2^4521849 is an apocalyptic number.

4521849 is the 1137-th nonagonal number.

It is an amenable number.

4521849 is a deficient number, since it is larger than the sum of its proper divisors (1734471).

4521849 is a wasteful number, since it uses less digits than its factorization.

4521849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520.

The product of its digits is 11520, while the sum is 33.

The square root of 4521849 is about 2126.4639663065. The cubic root of 4521849 is about 165.3631304508.

The spelling of 4521849 in words is "four million, five hundred twenty-one thousand, eight hundred forty-nine".