1238715036 has 72 divisors (see below), whose sum is σ = 3380604864. Its totient is φ = 380177280.

The previous prime is 1238715031. The next prime is 1238715053. The reversal of 1238715036 is 6305178321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238715031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193885 + ... + 200171.

Almost surely, 2^1238715036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238715036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690302432).

1238715036 is an abundant number, since it is smaller than the sum of its proper divisors (2141889828).

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

1238715036 is a wasteful number, since it uses less digits than its factorization.

1238715036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731 (or 6726 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1238715036 is about 35195.3837313930. The cubic root of 1238715036 is about 1073.9658447572.

The spelling of 1238715036 in words is "one billion, two hundred thirty-eight million, seven hundred fifteen thousand, thirty-six".