226249278 has 16 divisors (see below), whose sum is σ = 456504336. Its totient is φ = 74748800.

The previous prime is 226249259. The next prime is 226249279. The reversal of 226249278 is 872942622.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226249279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166173 + ... + 167528.

It is an arithmetic number, because the mean of its divisors is an integer number (28531521).

Almost surely, 2^226249278 is an apocalyptic number.

226249278 is an abundant number, since it is smaller than the sum of its proper divisors (230255058).

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

226249278 is a wasteful number, since it uses less digits than its factorization.

226249278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333819.

The product of its digits is 193536, while the sum is 42.

The square root of 226249278 is about 15041.5849563801. The cubic root of 226249278 is about 609.3438056984.

The spelling of 226249278 in words is "two hundred twenty-six million, two hundred forty-nine thousand, two hundred seventy-eight".