226401839 has 4 divisors (see below), whose sum is σ = 229129656. Its totient is φ = 223674024.

The previous prime is 226401803. The next prime is 226401871. The reversal of 226401839 is 938104622.

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-226401839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226401799 and 226401808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226401239) 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, 1363784 + ... + 1363949.

It is an arithmetic number, because the mean of its divisors is an integer number (57282414).

Almost surely, 2^226401839 is an apocalyptic number.

226401839 is a deficient number, since it is larger than the sum of its proper divisors (2727817).

226401839 is an equidigital number, since it uses as much as digits as its factorization.

226401839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727816.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 226401839 is about 15046.6554090934. The cubic root of 226401839 is about 609.4807360996.

The spelling of 226401839 in words is "two hundred twenty-six million, four hundred one thousand, eight hundred thirty-nine".