4228726 has 4 divisors (see below), whose sum is σ = 6343092. Its totient is φ = 2114362.

The previous prime is 4228723. The next prime is 4228727. The reversal of 4228726 is 6278224.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057180 + ... + 1057183.

It is an arithmetic number, because the mean of its divisors is an integer number (1585773).

Almost surely, 2^4228726 is an apocalyptic number.

4228726 is a deficient number, since it is larger than the sum of its proper divisors (2114366).

4228726 is a wasteful number, since it uses less digits than its factorization.

4228726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114365.

The product of its digits is 10752, while the sum is 31.

The square root of 4228726 is about 2056.3866367977. The cubic root of 4228726 is about 161.7098652878.

The spelling of 4228726 in words is "four million, two hundred twenty-eight thousand, seven hundred twenty-six".