3403820 has 48 divisors (see below), whose sum is σ = 8382528. Its totient is φ = 1136640.

The previous prime is 3403789. The next prime is 3403843. The reversal of 3403820 is 283043.

3403820 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 3403792 and 3403801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5444 + ... + 6036.

It is an arithmetic number, because the mean of its divisors is an integer number (174636).

Almost surely, 2^3403820 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 3403820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4191264).

3403820 is an abundant number, since it is smaller than the sum of its proper divisors (4978708).

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

3403820 is a wasteful number, since it uses less digits than its factorization.

3403820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3403820 is about 1844.9444436080. The cubic root of 3403820 is about 150.4257533800.

Adding to 3403820 its reverse (283043), we get a palindrome (3686863).

The spelling of 3403820 in words is "three million, four hundred three thousand, eight hundred twenty".