1222438454 has 32 divisors (see below), whose sum is σ = 2024801280. Its totient is φ = 550927872.

The previous prime is 1222438409. The next prime is 1222438457. The reversal of 1222438454 is 4548342221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222438457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165059 + ... + 172305.

It is an arithmetic number, because the mean of its divisors is an integer number (63275040).

Almost surely, 2^1222438454 is an apocalyptic number.

1222438454 is a deficient number, since it is larger than the sum of its proper divisors (802362826).

1222438454 is a wasteful number, since it uses less digits than its factorization.

1222438454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7484.

The product of its digits is 61440, while the sum is 35.

The square root of 1222438454 is about 34963.3873358975. The cubic root of 1222438454 is about 1069.2411581762.

The spelling of 1222438454 in words is "one billion, two hundred twenty-two million, four hundred thirty-eight thousand, four hundred fifty-four".