1226857438 has 8 divisors (see below), whose sum is σ = 1841533200. Its totient is φ = 613013040.

The previous prime is 1226857397. The next prime is 1226857453. The reversal of 1226857438 is 8347586221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204138 + ... + 210061.

It is an arithmetic number, because the mean of its divisors is an integer number (230191650).

Almost surely, 2^1226857438 is an apocalyptic number.

1226857438 is a deficient number, since it is larger than the sum of its proper divisors (614675762).

1226857438 is a wasteful number, since it uses less digits than its factorization.

1226857438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415682.

The product of its digits is 645120, while the sum is 46.

The square root of 1226857438 is about 35026.5247776596. The cubic root of 1226857438 is about 1070.5280062116.

The spelling of 1226857438 in words is "one billion, two hundred twenty-six million, eight hundred fifty-seven thousand, four hundred thirty-eight".