30894038289 has 27 divisors (see below), whose sum is σ = 45771706929. Its totient is φ = 20079622080.

The previous prime is 30894038269. The next prime is 30894038293. The reversal of 30894038289 is 98283049803.

It is a happy number.

The square root of 30894038289 is 175767.

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

30894038289 is a `hidden beast` number, since 3 + 0 + 89 + 403 + 82 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 24206069889 + 6687968400 = 155583^2 + 81780^2 .

It is not a de Polignac number, because 30894038289 - 2²⁹ = 30357167377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30894038269) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21618627 + ... + 21620055.

Almost surely, 2^30894038289 is an apocalyptic number.

30894038289 is the 175767-th square number.

30894038289 is the 87884-th centered octagonal number.

It is an amenable number.

30894038289 is a deficient number, since it is larger than the sum of its proper divisors (14877668640).

30894038289 is an frugal number, since it uses more digits than its factorization.

30894038289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 30894038289 in words is "thirty billion, eight hundred ninety-four million, thirty-eight thousand, two hundred eighty-nine".