3820542 has 32 divisors (see below), whose sum is σ = 8429184. Its totient is φ = 1144800.

The previous prime is 3820517. The next prime is 3820543. The reversal of 3820542 is 2450283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6792 + ... + 7332.

It is an arithmetic number, because the mean of its divisors is an integer number (263412).

Almost surely, 2^3820542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3820542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4214592).

3820542 is an abundant number, since it is smaller than the sum of its proper divisors (4608642).

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

3820542 is a wasteful number, since it uses less digits than its factorization.

3820542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3820542 is about 1954.6206793135. The cubic root of 3820542 is about 156.3297593858.

The spelling of 3820542 in words is "three million, eight hundred twenty thousand, five hundred forty-two".