8199420 has 24 divisors (see below), whose sum is σ = 22958544. Its totient is φ = 2186496.

The previous prime is 8199419. The next prime is 8199427. The reversal of 8199420 is 249918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68269 + ... + 68388.

It is an arithmetic number, because the mean of its divisors is an integer number (956606).

Almost surely, 2^8199420 is an apocalyptic number.

It is an amenable number.

8199420 is an abundant number, since it is smaller than the sum of its proper divisors (14759124).

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

8199420 is a wasteful number, since it uses less digits than its factorization.

8199420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136669 (or 136667 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 8199420 is about 2863.4629384715. The cubic root of 8199420 is about 201.6482129902.

The spelling of 8199420 in words is "eight million, one hundred ninety-nine thousand, four hundred twenty".