4481690 has 8 divisors (see below), whose sum is σ = 8067060. Its totient is φ = 1792672.

The previous prime is 4481683. The next prime is 4481707. The reversal of 4481690 is 961844.

It is a Cunningham number, because it is equal to 2117²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 4481689 + 1 = 2117^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4481690² = 40171090512200, which contains 22 as substring.

It is a congruent number.

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, 224075 + ... + 224094.

Almost surely, 2^4481690 is an apocalyptic number.

4481690 is a deficient number, since it is larger than the sum of its proper divisors (3585370).

4481690 is a wasteful number, since it uses less digits than its factorization.

4481690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448176.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 4481690 is about 2117.0002361833. Note that the first 3 decimals coincide. The cubic root of 4481690 is about 164.8721384701.

The spelling of 4481690 in words is "four million, four hundred eighty-one thousand, six hundred ninety".