30142565442 has 96 divisors (see below), whose sum is σ = 73626860736. Its totient is φ = 8833104000.

The previous prime is 30142565417. The next prime is 30142565449. The reversal of 30142565442 is 24456524103.

It is a junction number, because it is equal to n+sod(n) for n = 30142565397 and 30142565406.

It is not an unprimeable number, because it can be changed into a prime (30142565449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 842388 + ... + 877440.

It is an arithmetic number, because the mean of its divisors is an integer number (766946466).

Almost surely, 2^30142565442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30142565442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36813430368).

30142565442 is an abundant number, since it is smaller than the sum of its proper divisors (43484295294).

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

30142565442 is a wasteful number, since it uses less digits than its factorization.

30142565442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35216 (or 35213 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 30142565442 in words is "thirty billion, one hundred forty-two million, five hundred sixty-five thousand, four hundred forty-two".