226774638 has 12 divisors (see below), whose sum is σ = 491345088. Its totient is φ = 75591540.

The previous prime is 226774621. The next prime is 226774661. The reversal of 226774638 is 836477622.

226774638 is a `hidden beast` number, since 2 + 2 + 6 + 7 + 7 + 4 + 638 = 666.

226774638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 226774593 and 226774602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6299278 + ... + 6299313.

It is an arithmetic number, because the mean of its divisors is an integer number (40945424).

Almost surely, 2^226774638 is an apocalyptic number.

226774638 is an abundant number, since it is smaller than the sum of its proper divisors (264570450).

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

226774638 is a wasteful number, since it uses less digits than its factorization.

226774638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12598599 (or 12598596 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 226774638 is about 15059.0384155164. The cubic root of 226774638 is about 609.8150814563.

The spelling of 226774638 in words is "two hundred twenty-six million, seven hundred seventy-four thousand, six hundred thirty-eight".