8138826240 has 80 divisors (see below), whose sum is σ = 26018834688. Its totient is φ = 2170351616.

The previous prime is 8138826229. The next prime is 8138826259. The reversal of 8138826240 is 426288318.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 8138826192 and 8138826201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522192 + ... + 537551.

Almost surely, 2^8138826240 is an apocalyptic number.

8138826240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8138826240 is an abundant number, since it is smaller than the sum of its proper divisors (17880008448).

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

8138826240 is a wasteful number, since it uses less digits than its factorization.

8138826240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059769 (or 1059753 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 8138826240 is about 90215.4434672911. The cubic root of 8138826240 is about 2011.5025719282.

The spelling of 8138826240 in words is "eight billion, one hundred thirty-eight million, eight hundred twenty-six thousand, two hundred forty".