3874638 has 16 divisors (see below), whose sum is σ = 7768656. Its totient is φ = 1288320.

The previous prime is 3874583. The next prime is 3874639. The reversal of 3874638 is 8364783.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3874596 and 3874605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3958 + ... + 4838.

It is an arithmetic number, because the mean of its divisors is an integer number (485541).

Almost surely, 2^3874638 is an apocalyptic number.

3874638 is an abundant number, since it is smaller than the sum of its proper divisors (3894018).

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

3874638 is a wasteful number, since it uses less digits than its factorization.

3874638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619.

The product of its digits is 96768, while the sum is 39.

The square root of 3874638 is about 1968.4100182635. The cubic root of 3874638 is about 157.0641413714.

The spelling of 3874638 in words is "three million, eight hundred seventy-four thousand, six hundred thirty-eight".