8049139252 has 108 divisors (see below), whose sum is σ = 18959777760. Its totient is φ = 2970807840.

The previous prime is 8049139183. The next prime is 8049139253. The reversal of 8049139252 is 2529319408.

It is a junction number, because it is equal to n+sod(n) for n = 8049139199 and 8049139208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8049139253) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 441673 + ... + 459535.

Almost surely, 2^8049139252 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 8049139252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9479888880).

8049139252 is an abundant number, since it is smaller than the sum of its proper divisors (10910638508).

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

8049139252 is a wasteful number, since it uses less digits than its factorization.

8049139252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17922 (or 17902 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 8049139252 is about 89716.9953353321. The cubic root of 8049139252 is about 2004.0865819036.

The spelling of 8049139252 in words is "eight billion, forty-nine million, one hundred thirty-nine thousand, two hundred fifty-two".