1224210338 has 16 divisors (see below), whose sum is σ = 1980590136. Its totient is φ = 564157440.

The previous prime is 1224210313. The next prime is 1224210343. The reversal of 1224210338 is 8330124221.

It can be written as a sum of positive squares in 4 ways, for example, as 1109356249 + 114854089 = 33307^2 + 10717^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18431 + ... + 52802.

Almost surely, 2^1224210338 is an apocalyptic number.

1224210338 is a deficient number, since it is larger than the sum of its proper divisors (756379798).

1224210338 is a wasteful number, since it uses less digits than its factorization.

1224210338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71909.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1224210338 is about 34988.7172957226. The cubic root of 1224210338 is about 1069.7575186407.

Adding to 1224210338 its reverse (8330124221), we get a palindrome (9554334559).

The spelling of 1224210338 in words is "one billion, two hundred twenty-four million, two hundred ten thousand, three hundred thirty-eight".