1338172358436 has 27 divisors (see below), whose sum is σ = 3382619895291. Its totient is φ = 446055139224.

The previous prime is 1338172358431. The next prime is 1338172358443. The reversal of 1338172358436 is 6348532718331.

The square root of 1338172358436 is 1156794.

It is a perfect power (a square), and thus also a powerful number.

1338172358436 is a `hidden beast` number, since 1 + 3 + 3 + 8 + 1 + 7 + 23 + 584 + 36 = 666.

It is not an unprimeable number, because it can be changed into a prime (1338172358431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6844365 + ... + 7037163.

Almost surely, 2^{1338172358436} is an apocalyptic number.

1338172358436 is the 1156794-th square number.

It is an amenable number.

1338172358436 is an abundant number, since it is smaller than the sum of its proper divisors (2044447536855).

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

1338172358436 is an frugal number, since it uses more digits than its factorization.

1338172358436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385608 (or 192804 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 1338172358436 in words is "one trillion, three hundred thirty-eight billion, one hundred seventy-two million, three hundred fifty-eight thousand, four hundred thirty-six".