7226138 has 8 divisors (see below), whose sum is σ = 10940832. Its totient is φ = 3579196.

The previous prime is 7226123. The next prime is 7226159. The reversal of 7226138 is 8316227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7226138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16670 + ... + 17097.

It is an arithmetic number, because the mean of its divisors is an integer number (1367604).

Almost surely, 2^7226138 is an apocalyptic number.

7226138 is a deficient number, since it is larger than the sum of its proper divisors (3714694).

7226138 is a wasteful number, since it uses less digits than its factorization.

7226138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33876.

The product of its digits is 4032, while the sum is 29.

The square root of 7226138 is about 2688.1476893951. The cubic root of 7226138 is about 193.3312610427.

The spelling of 7226138 in words is "seven million, two hundred twenty-six thousand, one hundred thirty-eight".