1213238338 has 8 divisors (see below), whose sum is σ = 1959846588. Its totient is φ = 559956144.

The previous prime is 1213238297. The next prime is 1213238347. The reversal of 1213238338 is 8338323121.

It can be written as a sum of positive squares in 2 ways, for example, as 1205964529 + 7273809 = 34727^2 + 2697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23331481 + ... + 23331532.

Almost surely, 2^1213238338 is an apocalyptic number.

1213238338 is a deficient number, since it is larger than the sum of its proper divisors (746608250).

1213238338 is a wasteful number, since it uses less digits than its factorization.

1213238338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46663028.

The product of its digits is 20736, while the sum is 34.

The square root of 1213238338 is about 34831.5709952910. The cubic root of 1213238338 is about 1066.5520181247.

The spelling of 1213238338 in words is "one billion, two hundred thirteen million, two hundred thirty-eight thousand, three hundred thirty-eight".