3838638 has 16 divisors (see below), whose sum is σ = 7698816. Its totient is φ = 1275960.

The previous prime is 3838621. The next prime is 3838657. The reversal of 3838638 is 8368383.

It is a junction number, because it is equal to n+sod(n) for n = 3838596 and 3838605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (481176).

Almost surely, 2^3838638 is an apocalyptic number.

3838638 is an abundant number, since it is smaller than the sum of its proper divisors (3860178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3838638 is a wasteful number, since it uses less digits than its factorization.

3838638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799.

The product of its digits is 82944, while the sum is 39.

The square root of 3838638 is about 1959.2442420484. The cubic root of 3838638 is about 156.5761893959.

The spelling of 3838638 in words is "three million, eight hundred thirty-eight thousand, six hundred thirty-eight".