3831408 has 120 divisors (see below), whose sum is σ = 12863760. Its totient is φ = 1088640.

The previous prime is 3831379. The next prime is 3831413. The reversal of 3831408 is 8041383.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21078 + ... + 21258.

It is an arithmetic number, because the mean of its divisors is an integer number (107198).

Almost surely, 2^3831408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3831408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6431880).

3831408 is an abundant number, since it is smaller than the sum of its proper divisors (9032352).

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

3831408 is a wasteful number, since it uses less digits than its factorization.

3831408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 3831408 is about 1957.3982732188. The cubic root of 3831408 is about 156.4778248785.

The spelling of 3831408 in words is "three million, eight hundred thirty-one thousand, four hundred eight".