1238828936 has 16 divisors (see below), whose sum is σ = 2324938140. Its totient is φ = 618845440.

The previous prime is 1238828923. The next prime is 1238828951. The reversal of 1238828936 is 6398288321.

It can be written as a sum of positive squares in 2 ways, for example, as 986336836 + 252492100 = 31406^2 + 15890^2 .

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, 61805 + ... + 79356.

Almost surely, 2^1238828936 is an apocalyptic number.

It is an amenable number.

1238828936 is a deficient number, since it is larger than the sum of its proper divisors (1086109204).

1238828936 is a wasteful number, since it uses less digits than its factorization.

1238828936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142264 (or 142260 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 1238828936 is about 35197.0018041310. The cubic root of 1238828936 is about 1073.9987608455.

The spelling of 1238828936 in words is "one billion, two hundred thirty-eight million, eight hundred twenty-eight thousand, nine hundred thirty-six".