1224505408 has 28 divisors (see below), whose sum is σ = 2777004352. Its totient is φ = 524787840.

The previous prime is 1224505397. The next prime is 1224505423. The reversal of 1224505408 is 8045054221.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1224505408.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1366188 + ... + 1367083.

Almost surely, 2^1224505408 is an apocalyptic number.

It is an amenable number.

1224505408 is an abundant number, since it is smaller than the sum of its proper divisors (1552498944).

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

1224505408 is an equidigital number, since it uses as much as digits as its factorization.

1224505408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733290 (or 2733280 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 1224505408 is about 34992.9336866745. The cubic root of 1224505408 is about 1069.8434592083.

Adding to 1224505408 its reverse (8045054221), we get a palindrome (9269559629).

The spelling of 1224505408 in words is "one billion, two hundred twenty-four million, five hundred five thousand, four hundred eight".