3816420 has 24 divisors (see below), whose sum is σ = 10686144. Its totient is φ = 1017696.

The previous prime is 3816391. The next prime is 3816427. The reversal of 3816420 is 246183.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3816427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31744 + ... + 31863.

It is an arithmetic number, because the mean of its divisors is an integer number (445256).

Almost surely, 2^3816420 is an apocalyptic number.

3816420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3816420 is an abundant number, since it is smaller than the sum of its proper divisors (6869724).

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

3816420 is a wasteful number, since it uses less digits than its factorization.

3816420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63619 (or 63617 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3816420 is about 1953.5659702196. The cubic root of 3816420 is about 156.2735175268.

The spelling of 3816420 in words is "three million, eight hundred sixteen thousand, four hundred twenty".