8219042 has 16 divisors (see below), whose sum is σ = 13329792. Its totient is φ = 3778320.

The previous prime is 8219033. The next prime is 8219047. The reversal of 8219042 is 2409128.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8219047) 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, 8567 + ... + 9477.

It is an arithmetic number, because the mean of its divisors is an integer number (833112).

Almost surely, 2^8219042 is an apocalyptic number.

8219042 is a deficient number, since it is larger than the sum of its proper divisors (5110750).

8219042 is a wasteful number, since it uses less digits than its factorization.

8219042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 8219042 is about 2866.8871620627. The cubic root of 8219042 is about 201.8089393642.

The spelling of 8219042 in words is "eight million, two hundred nineteen thousand, forty-two".