3638426 has 8 divisors (see below), whose sum is σ = 5953824. Its totient is φ = 1653820.

The previous prime is 3638419. The next prime is 3638473. The reversal of 3638426 is 6248363.

3638426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3638392 and 3638401.

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 3 ways as a sum of consecutive naturals, for example, 82670 + ... + 82713.

It is an arithmetic number, because the mean of its divisors is an integer number (744228).

Almost surely, 2^3638426 is an apocalyptic number.

3638426 is a deficient number, since it is larger than the sum of its proper divisors (2315398).

3638426 is a wasteful number, since it uses less digits than its factorization.

3638426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165396.

The product of its digits is 20736, while the sum is 32.

The square root of 3638426 is about 1907.4658581479. The cubic root of 3638426 is about 153.8052578606.

The spelling of 3638426 in words is "three million, six hundred thirty-eight thousand, four hundred twenty-six".