7228438 has 16 divisors (see below), whose sum is σ = 12455424. Its totient is φ = 3081960.

The previous prime is 7228433. The next prime is 7228447. The reversal of 7228438 is 8348227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1731 + ... + 4177.

It is an arithmetic number, because the mean of its divisors is an integer number (778464).

Almost surely, 2^7228438 is an apocalyptic number.

7228438 is a deficient number, since it is larger than the sum of its proper divisors (5226986).

7228438 is a wasteful number, since it uses less digits than its factorization.

7228438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667.

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

The square root of 7228438 is about 2688.5754592349. The cubic root of 7228438 is about 193.3517706026.

The spelling of 7228438 in words is "seven million, two hundred twenty-eight thousand, four hundred thirty-eight".