13000235388 has 48 divisors (see below), whose sum is σ = 35184731904. Its totient is φ = 3658913280.

The previous prime is 13000235383. The next prime is 13000235401. The reversal of 13000235388 is 88353200031.

It is a super-2 number, since 2×13000235388² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000235383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149333 + ... + 1160588.

It is an arithmetic number, because the mean of its divisors is an integer number (733015248).

Almost surely, 2^13000235388 is an apocalyptic number.

It is an amenable number.

13000235388 is an abundant number, since it is smaller than the sum of its proper divisors (22184496516).

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

13000235388 is a wasteful number, since it uses less digits than its factorization.

13000235388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310002 (or 2310000 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 13000235388 in words is "thirteen billion, two hundred thirty-five thousand, three hundred eighty-eight".