1226438 has 4 divisors (see below), whose sum is σ = 1839660. Its totient is φ = 613218.

The previous prime is 1226417. The next prime is 1226461. The reversal of 1226438 is 8346221.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306608 + ... + 306611.

It is an arithmetic number, because the mean of its divisors is an integer number (459915).

2^1226438 is an apocalyptic number.

1226438 is a deficient number, since it is larger than the sum of its proper divisors (613222).

1226438 is an equidigital number, since it uses as much as digits as its factorization.

1226438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613221.

The product of its digits is 2304, while the sum is 26.

The square root of 1226438 is about 1107.4466127087. The cubic root of 1226438 is about 107.0405994941.

The spelling of 1226438 in words is "one million, two hundred twenty-six thousand, four hundred thirty-eight".