3858400 has 144 divisors (see below), whose sum is σ = 11811744. Its totient is φ = 1198080.

The previous prime is 3858367. The next prime is 3858401. The reversal of 3858400 is 48583.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72774 + ... + 72826.

It is an arithmetic number, because the mean of its divisors is an integer number (82026).

Almost surely, 2^3858400 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 3858400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5905872).

3858400 is an abundant number, since it is smaller than the sum of its proper divisors (7953344).

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

3858400 is a wasteful number, since it uses less digits than its factorization.

3858400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 3858400 is about 1964.2810389555. The cubic root of 3858400 is about 156.8444237589.

The spelling of 3858400 in words is "three million, eight hundred fifty-eight thousand, four hundred".