30142342040 has 32 divisors (see below), whose sum is σ = 67826583360. Its totient is φ = 12055814400.

The previous prime is 30142341989. The next prime is 30142342067. The reversal of 30142342040 is 4024324103.

It is a junction number, because it is equal to n+sod(n) for n = 30142341997 and 30142342015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501185 + ... + 558095.

It is an arithmetic number, because the mean of its divisors is an integer number (2119580730).

Almost surely, 2^30142342040 is an apocalyptic number.

It is an amenable number.

30142342040 is an abundant number, since it is smaller than the sum of its proper divisors (37684241320).

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

30142342040 is a wasteful number, since it uses less digits than its factorization.

30142342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70163 (or 70159 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30142342040 its reverse (4024324103), we get a palindrome (34166666143).

The spelling of 30142342040 in words is "thirty billion, one hundred forty-two million, three hundred forty-two thousand, forty".