28349130384 has 105 divisors (see below), whose sum is σ = 82404845203. Its totient is φ = 9443648736.

The previous prime is 28349130379. The next prime is 28349130413. The reversal of 28349130384 is 48303194382.

The square root of 28349130384 is 168372.

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

28349130384 is a `hidden beast` number, since 2 + 83 + 491 + 3 + 0 + 3 + 84 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 18183397 + ... + 18184955.

Almost surely, 2^28349130384 is an apocalyptic number.

28349130384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

28349130384 is the 168372-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28349130384

28349130384 is an abundant number, since it is smaller than the sum of its proper divisors (54055714819).

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

28349130384 is an frugal number, since it uses more digits than its factorization.

28349130384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 28349130384 in words is "twenty-eight billion, three hundred forty-nine million, one hundred thirty thousand, three hundred eighty-four".