4549986 has 32 divisors (see below), whose sum is σ = 11556480. Its totient is φ = 1299888.

The previous prime is 4549973. The next prime is 4549991. The reversal of 4549986 is 6899454.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5641 + ... + 6396.

It is an arithmetic number, because the mean of its divisors is an integer number (361140).

Almost surely, 2^4549986 is an apocalyptic number.

4549986 is an abundant number, since it is smaller than the sum of its proper divisors (7006494).

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

4549986 is a wasteful number, since it uses less digits than its factorization.

4549986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12055 (or 12049 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 4549986 is about 2133.0696191170. The cubic root of 4549986 is about 165.7054096797.

It can be divided in two parts, 454 and 9986, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 4549986 in words is "four million, five hundred forty-nine thousand, nine hundred eighty-six".