30742049328 has 20 divisors (see below), whose sum is σ = 79416960888. Its totient is φ = 10247349760.

The previous prime is 30742049323. The next prime is 30742049329. The reversal of 30742049328 is 82394024703.

It is a self number, because there is not a number n which added to its sum of digits gives 30742049328.

It is not an unprimeable number, because it can be changed into a prime (30742049323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320229633 + ... + 320229728.

Almost surely, 2^30742049328 is an apocalyptic number.

It is an amenable number.

30742049328 is an abundant number, since it is smaller than the sum of its proper divisors (48674911560).

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

30742049328 is a wasteful number, since it uses less digits than its factorization.

30742049328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640459372 (or 640459366 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 30742049328 in words is "thirty billion, seven hundred forty-two million, forty-nine thousand, three hundred twenty-eight".