3438638 has 32 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 1378080.

The previous prime is 3438637. The next prime is 3438647. The reversal of 3438638 is 8368343.

3438638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3438598 and 3438607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3438637) by changing a digit.

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, 18908 + ... + 19088.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^3438638 is an apocalyptic number.

3438638 is a deficient number, since it is larger than the sum of its proper divisors (2851282).

3438638 is a wasteful number, since it uses less digits than its factorization.

3438638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272.

The product of its digits is 41472, while the sum is 35.

The square root of 3438638 is about 1854.3564921557. The cubic root of 3438638 is about 150.9369208627.

The spelling of 3438638 in words is "three million, four hundred thirty-eight thousand, six hundred thirty-eight".