1238133942 has 12 divisors (see below), whose sum is σ = 2682623580. Its totient is φ = 412711308.

The previous prime is 1238133931. The next prime is 1238133971. The reversal of 1238133942 is 2493318321.

1238133942 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1238133897 and 1238133906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34392592 + ... + 34392627.

It is an arithmetic number, because the mean of its divisors is an integer number (223551965).

Almost surely, 2^1238133942 is an apocalyptic number.

1238133942 is an abundant number, since it is smaller than the sum of its proper divisors (1444489638).

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

1238133942 is a wasteful number, since it uses less digits than its factorization.

1238133942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68785227 (or 68785224 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 1238133942 is about 35187.1275042451. The cubic root of 1238133942 is about 1073.7978823384.

The spelling of 1238133942 in words is "one billion, two hundred thirty-eight million, one hundred thirty-three thousand, nine hundred forty-two".