1538794884 has 48 divisors (see below), whose sum is σ = 3921019200. Its totient is φ = 465815040.

The previous prime is 1538794883. The next prime is 1538794889. The reversal of 1538794884 is 4884978351.

It is not an unprimeable number, because it can be changed into a prime (1538794883) 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, 132912 + ... + 144024.

It is an arithmetic number, because the mean of its divisors is an integer number (81687900).

Almost surely, 2^1538794884 is an apocalyptic number.

It is an amenable number.

1538794884 is an abundant number, since it is smaller than the sum of its proper divisors (2382224316).

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

1538794884 is a wasteful number, since it uses less digits than its factorization.

1538794884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180 (or 12178 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The square root of 1538794884 is about 39227.4761359943. The cubic root of 1538794884 is about 1154.4990447612.

The spelling of 1538794884 in words is "one billion, five hundred thirty-eight million, seven hundred ninety-four thousand, eight hundred eighty-four".