226428539 has 4 divisors (see below), whose sum is σ = 226518456. Its totient is φ = 226338624.

The previous prime is 226428509. The next prime is 226428547. The reversal of 226428539 is 935824622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935824622 = 2 ⋅467912311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226428539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226428496 and 226428505.

It is not an unprimeable number, because it can be changed into a prime (226428509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41069 + ... + 46254.

It is an arithmetic number, because the mean of its divisors is an integer number (56629614).

Almost surely, 2^226428539 is an apocalyptic number.

226428539 is a deficient number, since it is larger than the sum of its proper divisors (89917).

226428539 is an equidigital number, since it uses as much as digits as its factorization.

226428539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89916.

The product of its digits is 207360, while the sum is 41.

The square root of 226428539 is about 15047.5426232990. The cubic root of 226428539 is about 609.5046942324.

It can be divided in two parts, 2264 and 28539, that added together give a palindrome (30803).

The spelling of 226428539 in words is "two hundred twenty-six million, four hundred twenty-eight thousand, five hundred thirty-nine".