3822420 has 96 divisors (see below), whose sum is σ = 12902400. Its totient is φ = 825984.

The previous prime is 3822419. The next prime is 3822421. The reversal of 3822420 is 242283.

3822420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3822419) and next prime (3822421).

It is a super-2 number, since 2×3822420² = 29221789312800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3822421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7741 + ... + 8219.

It is an arithmetic number, because the mean of its divisors is an integer number (134400).

Almost surely, 2^3822420 is an apocalyptic number.

3822420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3822420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6451200).

3822420 is an abundant number, since it is smaller than the sum of its proper divisors (9079980).

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

3822420 is a wasteful number, since it uses less digits than its factorization.

3822420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3822420 is about 1955.1010204079. The cubic root of 3822420 is about 156.3553699925.

The spelling of 3822420 in words is "three million, eight hundred twenty-two thousand, four hundred twenty".