1222431504 has 80 divisors (see below), whose sum is σ = 3613483008. Its totient is φ = 348840576.

The previous prime is 1222431503. The next prime is 1222431517. The reversal of 1222431504 is 4051342221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1222431503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363559 + ... + 366905.

Almost surely, 2^1222431504 is an apocalyptic number.

1222431504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1222431504 is an abundant number, since it is smaller than the sum of its proper divisors (2391051504).

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

1222431504 is a wasteful number, since it uses less digits than its factorization.

1222431504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452 (or 4446 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1222431504 is about 34963.2879460728. The cubic root of 1222431504 is about 1069.2391318328.

Adding to 1222431504 its reverse (4051342221), we get a palindrome (5273773725).

The spelling of 1222431504 in words is "one billion, two hundred twenty-two million, four hundred thirty-one thousand, five hundred four".