1238628353 has 2 divisors, whose sum is σ = 1238628354. Its totient is φ = 1238628352.

The previous prime is 1238628331. The next prime is 1238628437. The reversal of 1238628353 is 3538268321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710915569 + 527712784 = 26663^2 + 22972^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238628353 - 2¹⁶ = 1238562817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1238628353.

It is not a weakly prime, because it can be changed into another prime (1238628323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619314176 + 619314177.

It is an arithmetic number, because the mean of its divisors is an integer number (619314177).

Almost surely, 2^1238628353 is an apocalyptic number.

It is an amenable number.

1238628353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238628353 is an equidigital number, since it uses as much as digits as its factorization.

1238628353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 1238628353 is about 35194.1522557370. The cubic root of 1238628353 is about 1073.9407927879.

The spelling of 1238628353 in words is "one billion, two hundred thirty-eight million, six hundred twenty-eight thousand, three hundred fifty-three".