30397222784 has 64 divisors (see below), whose sum is σ = 63096894000. Its totient is φ = 14568701952.

The previous prime is 30397222783. The next prime is 30397222799. The reversal of 30397222784 is 48722279303.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30397222783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486512 + ... + 545424.

Almost surely, 2^30397222784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30397222784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31548447000).

30397222784 is an abundant number, since it is smaller than the sum of its proper divisors (32699671216).

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

30397222784 is a wasteful number, since it uses less digits than its factorization.

30397222784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59095 (or 59083 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 30397222784 in words is "thirty billion, three hundred ninety-seven million, two hundred twenty-two thousand, seven hundred eighty-four".