1224405452 has 6 divisors (see below), whose sum is σ = 2142709548. Its totient is φ = 612202724.

The previous prime is 1224405449. The next prime is 1224405463. The reversal of 1224405452 is 2545044221.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 153050678 + ... + 153050685.

It is an arithmetic number, because the mean of its divisors is an integer number (357118258).

Almost surely, 2^1224405452 is an apocalyptic number.

It is an amenable number.

1224405452 is a deficient number, since it is larger than the sum of its proper divisors (918304096).

1224405452 is a wasteful number, since it uses less digits than its factorization.

1224405452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306101367 (or 306101365 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1224405452 is about 34991.5054263174. The cubic root of 1224405452 is about 1069.8143480853.

Adding to 1224405452 its reverse (2545044221), we get a palindrome (3769449673).

The spelling of 1224405452 in words is "one billion, two hundred twenty-four million, four hundred five thousand, four hundred fifty-two".