228257826 has 8 divisors (see below), whose sum is σ = 456515664. Its totient is φ = 76085940.

The previous prime is 228257749. The next prime is 228257831. The reversal of 228257826 is 628752822.

It is a sphenic number, since it is the product of 3 distinct primes.

228257826 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19021480 + ... + 19021491.

It is an arithmetic number, because the mean of its divisors is an integer number (57064458).

Almost surely, 2^228257826 is an apocalyptic number.

228257826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228257826 is a wasteful number, since it uses less digits than its factorization.

228257826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38042976.

The product of its digits is 215040, while the sum is 42.

The square root of 228257826 is about 15108.2039303155. The cubic root of 228257826 is about 611.1416637972.

The spelling of 228257826 in words is "two hundred twenty-eight million, two hundred fifty-seven thousand, eight hundred twenty-six".