381273226 has 4 divisors (see below), whose sum is σ = 571909842. Its totient is φ = 190636612.

The previous prime is 381273223. The next prime is 381273239. The reversal of 381273226 is 622372183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 192238225 + 189035001 = 13865^2 + 13749^2 .

It is a junction number, because it is equal to n+sod(n) for n = 381273191 and 381273200.

It is not an unprimeable number, because it can be changed into a prime (381273223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95318305 + ... + 95318308.

Almost surely, 2^381273226 is an apocalyptic number.

381273226 is a deficient number, since it is larger than the sum of its proper divisors (190636616).

381273226 is a wasteful number, since it uses less digits than its factorization.

381273226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190636615.

The product of its digits is 24192, while the sum is 34.

The square root of 381273226 is about 19526.2189376233. The cubic root of 381273226 is about 725.1237052487.

The spelling of 381273226 in words is "three hundred eighty-one million, two hundred seventy-three thousand, two hundred twenty-six".