1222464438 has 48 divisors (see below), whose sum is σ = 2855348496. Its totient is φ = 375756480.

The previous prime is 1222464437. The next prime is 1222464443. The reversal of 1222464438 is 8344642221.

1222464438 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 4 + 644 + 3 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222464431) 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 23 ways as a sum of consecutive naturals, for example, 296773 + ... + 300863.

It is an arithmetic number, because the mean of its divisors is an integer number (59486427).

Almost surely, 2^1222464438 is an apocalyptic number.

1222464438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1222464438 is an abundant number, since it is smaller than the sum of its proper divisors (1632884058).

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

1222464438 is a wasteful number, since it uses less digits than its factorization.

1222464438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389 (or 5386 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 1222464438 is about 34963.7589226330. The cubic root of 1222464438 is about 1069.2487340082.

The spelling of 1222464438 in words is "one billion, two hundred twenty-two million, four hundred sixty-four thousand, four hundred thirty-eight".