1538835984 has 135 divisors (see below), whose sum is σ = 5020472847. Its totient is φ = 438725952.

The previous prime is 1538835929. The next prime is 1538835997. The reversal of 1538835984 is 4895388351.

The square root of 1538835984 is 39228.

It is a perfect power (a square), and thus also a powerful number.

1538835984 is a `hidden beast` number, since 15 + 38 + 8 + 3 + 598 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1538835984.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3294919 + ... + 3295385.

Almost surely, 2^1538835984 is an apocalyptic number.

1538835984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1538835984 is the 39228-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1538835984

1538835984 is an abundant number, since it is smaller than the sum of its proper divisors (3481636863).

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

1538835984 is an equidigital number, since it uses as much as digits as its factorization.

1538835984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 479 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The cubic root of 1538835984 is about 1154.5093232566.

The spelling of 1538835984 in words is "one billion, five hundred thirty-eight million, eight hundred thirty-five thousand, nine hundred eighty-four".