8422738 has 24 divisors (see below), whose sum is σ = 13935600. Its totient is φ = 3807144.

The previous prime is 8422727. The next prime is 8422741. The reversal of 8422738 is 8372248.

It is a d-powerful number, because it can be written as 8 + 4³ + 2¹⁵ + 2²³ + 7² + 3⁶ + 8³ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19893 + ... + 20311.

It is an arithmetic number, because the mean of its divisors is an integer number (580650).

Almost surely, 2^8422738 is an apocalyptic number.

8422738 is a deficient number, since it is larger than the sum of its proper divisors (5512862).

8422738 is a wasteful number, since it uses less digits than its factorization.

8422738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 463 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 8422738 is about 2902.1953759180. The cubic root of 8422738 is about 203.4625253212.

It can be divided in two parts, 84 and 22738, that added together give a palindrome (22822).

The spelling of 8422738 in words is "eight million, four hundred twenty-two thousand, seven hundred thirty-eight".