3630818 has 8 divisors (see below), whose sum is σ = 5549148. Its totient is φ = 1781104.

The previous prime is 3630817. The next prime is 3630821. The reversal of 3630818 is 8180363.

It can be written as a sum of positive squares in 2 ways, for example, as 3621409 + 9409 = 1903^2 + 97^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3630817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17021 + ... + 17232.

Almost surely, 2^3630818 is an apocalyptic number.

3630818 is a deficient number, since it is larger than the sum of its proper divisors (1918330).

3630818 is a wasteful number, since it uses less digits than its factorization.

3630818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34308.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3630818 is about 1905.4705455609. The cubic root of 3630818 is about 153.6979800660.

The spelling of 3630818 in words is "three million, six hundred thirty thousand, eight hundred eighteen".