3805400 has 48 divisors (see below), whose sum is σ = 9039600. Its totient is φ = 1489280.

The previous prime is 3805393. The next prime is 3805463. The reversal of 3805400 is 45083.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10421 + ... + 10779.

It is an arithmetic number, because the mean of its divisors is an integer number (188325).

Almost surely, 2^3805400 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 3805400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4519800).

3805400 is an abundant number, since it is smaller than the sum of its proper divisors (5234200).

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

3805400 is a wasteful number, since it uses less digits than its factorization.

3805400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 3805400 is about 1950.7434480218. The cubic root of 3805400 is about 156.1229580676.

The spelling of 3805400 in words is "three million, eight hundred five thousand, four hundred".