1238122892 has 12 divisors (see below), whose sum is σ = 2169053880. Its totient is φ = 618393216.

The previous prime is 1238122889. The next prime is 1238122939. The reversal of 1238122892 is 2982218321.

It is a happy number.

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, 162878 + ... + 170309.

It is an arithmetic number, because the mean of its divisors is an integer number (180754490).

Almost surely, 2^1238122892 is an apocalyptic number.

It is an amenable number.

1238122892 is a deficient number, since it is larger than the sum of its proper divisors (930930988).

1238122892 is a wasteful number, since it uses less digits than its factorization.

1238122892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334120 (or 334118 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 1238122892 is about 35186.9704862468. The cubic root of 1238122892 is about 1073.7946878801.

The spelling of 1238122892 in words is "one billion, two hundred thirty-eight million, one hundred twenty-two thousand, eight hundred ninety-two".