8136420 has 24 divisors (see below), whose sum is σ = 22782144. Its totient is φ = 2169696.

The previous prime is 8136397. The next prime is 8136433. The reversal of 8136420 is 246318.

It is a happy number.

8136420 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67744 + ... + 67863.

It is an arithmetic number, because the mean of its divisors is an integer number (949256).

Almost surely, 2^8136420 is an apocalyptic number.

It is an amenable number.

8136420 is an abundant number, since it is smaller than the sum of its proper divisors (14645724).

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

8136420 is a wasteful number, since it uses less digits than its factorization.

8136420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135619 (or 135617 counting only the distinct ones).

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

The square root of 8136420 is about 2852.4410598643. The cubic root of 8136420 is about 201.1304319138.

The spelling of 8136420 in words is "eight million, one hundred thirty-six thousand, four hundred twenty".