1238832243 has 48 divisors (see below), whose sum is σ = 2072204160. Its totient is φ = 711160560.

The previous prime is 1238832209. The next prime is 1238832247. The reversal of 1238832243 is 3422388321.

1238832243 is a `hidden beast` number, since 1 + 2 + 388 + 32 + 243 = 666.

It is not a de Polignac number, because 1238832243 - 2¹⁰ = 1238831219 is a prime.

It is a super-2 number, since 2×1238832243² = 3069410652592822098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1238832198 and 1238832207.

It is not an unprimeable number, because it can be changed into a prime (1238832247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224880 + ... + 230322.

It is an arithmetic number, because the mean of its divisors is an integer number (43170920).

Almost surely, 2^1238832243 is an apocalyptic number.

1238832243 is a deficient number, since it is larger than the sum of its proper divisors (833371917).

1238832243 is a wasteful number, since it uses less digits than its factorization.

1238832243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501 (or 5476 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 1238832243 is about 35197.0487825329. The cubic root of 1238832243 is about 1073.9997165090. Note that the first 3 decimals are identical.

The spelling of 1238832243 in words is "one billion, two hundred thirty-eight million, eight hundred thirty-two thousand, two hundred forty-three".