226268639 has 4 divisors (see below), whose sum is σ = 226991856. Its totient is φ = 225545424.

The previous prime is 226268633. The next prime is 226268671. The reversal of 226268639 is 936862622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226268639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226268639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226268633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361139 + ... + 361764.

It is an arithmetic number, because the mean of its divisors is an integer number (56747964).

Almost surely, 2^226268639 is an apocalyptic number.

226268639 is a deficient number, since it is larger than the sum of its proper divisors (723217).

226268639 is an equidigital number, since it uses as much as digits as its factorization.

226268639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723216.

The product of its digits is 373248, while the sum is 44.

The square root of 226268639 is about 15042.2285250557. The cubic root of 226268639 is about 609.3611864815.

The spelling of 226268639 in words is "two hundred twenty-six million, two hundred sixty-eight thousand, six hundred thirty-nine".