3238638 has 16 divisors (see below), whose sum is σ = 6975696. Its totient is φ = 996480.

The previous prime is 3238597. The next prime is 3238643. The reversal of 3238638 is 8368323.

It is a super-3 number, since 3×3238638³ (a number of 21 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3238599 and 3238608.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20683 + ... + 20838.

It is an arithmetic number, because the mean of its divisors is an integer number (435981).

Almost surely, 2^3238638 is an apocalyptic number.

3238638 is an abundant number, since it is smaller than the sum of its proper divisors (3737058).

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

3238638 is a wasteful number, since it uses less digits than its factorization.

3238638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41539.

The product of its digits is 20736, while the sum is 33.

The square root of 3238638 is about 1799.6216268983. The cubic root of 3238638 is about 147.9519871041.

The spelling of 3238638 in words is "three million, two hundred thirty-eight thousand, six hundred thirty-eight".