1238795712 has 672 divisors, whose sum is σ = 4929859584. Its totient is φ = 287539200.

The previous prime is 1238795699. The next prime is 1238795713. The reversal of 1238795712 is 2175978321.

1238795712 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 79 + 571 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×1238795712² = 3069229632139173888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238795713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23373478 + ... + 23373530.

Almost surely, 2^1238795712 is an apocalyptic number.

1238795712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238795712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2464929792).

1238795712 is an abundant number, since it is smaller than the sum of its proper divisors (3691063872).

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

1238795712 is a wasteful number, since it uses less digits than its factorization.

1238795712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 124 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 1238795712 is about 35196.5298289476. The cubic root of 1238795712 is about 1073.9891596130.

The spelling of 1238795712 in words is "one billion, two hundred thirty-eight million, seven hundred ninety-five thousand, seven hundred twelve".