30220242144 has 48 divisors (see below), whose sum is σ = 80824906512. Its totient is φ = 9883347968.

The previous prime is 30220242139. The next prime is 30220242161. The reversal of 30220242144 is 44124202203.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2964669 + ... + 2974844.

It is an arithmetic number, because the mean of its divisors is an integer number (1683852219).

Almost surely, 2^30220242144 is an apocalyptic number.

It is an amenable number.

30220242144 is an abundant number, since it is smaller than the sum of its proper divisors (50604664368).

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

30220242144 is a wasteful number, since it uses less digits than its factorization.

30220242144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939579 (or 5939571 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 30220242144 its reverse (44124202203), we get a palindrome (74344444347).

The spelling of 30220242144 in words is "thirty billion, two hundred twenty million, two hundred forty-two thousand, one hundred forty-four".