4481636 has 12 divisors (see below), whose sum is σ = 7877100. Its totient is φ = 2231040.

The previous prime is 4481629. The next prime is 4481677. The reversal of 4481636 is 6361844.

It can be written as a sum of positive squares in 2 ways, for example, as 4000000 + 481636 = 2000^2 + 694^2 .

It is a super-2 number, since 2×4481636² = 40170122472992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361 + ... + 3288.

It is an arithmetic number, because the mean of its divisors is an integer number (656425).

Almost surely, 2^4481636 is an apocalyptic number.

It is an amenable number.

4481636 is a deficient number, since it is larger than the sum of its proper divisors (3395464).

4481636 is a wasteful number, since it uses less digits than its factorization.

4481636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894 (or 4892 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 4481636 is about 2116.9874822492. The cubic root of 4481636 is about 164.8714762846.

It can be divided in two parts, 4 and 481636, that multiplied together give a square (1926544 = 1388²).

The spelling of 4481636 in words is "four million, four hundred eighty-one thousand, six hundred thirty-six".