30142030044 has 48 divisors (see below), whose sum is σ = 81895339008. Its totient is φ = 8449516608.

The previous prime is 30142030031. The next prime is 30142030099. The reversal of 30142030044 is 44003024103.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30142030044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3380772 + ... + 3389675.

It is an arithmetic number, because the mean of its divisors is an integer number (1706152896).

Almost surely, 2^30142030044 is an apocalyptic number.

It is an amenable number.

30142030044 is an abundant number, since it is smaller than the sum of its proper divisors (51753308964).

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

30142030044 is a wasteful number, since it uses less digits than its factorization.

30142030044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770514 (or 6770512 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 30142030044 its reverse (44003024103), we get a palindrome (74145054147).

The spelling of 30142030044 in words is "thirty billion, one hundred forty-two million, thirty thousand, forty-four".