30444000142 has 4 divisors (see below), whose sum is σ = 45666000216. Its totient is φ = 15222000070.

The previous prime is 30444000121. The next prime is 30444000173. The reversal of 30444000142 is 24100044403.

30444000142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24100044403 = 599 ⋅40233797.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7611000034 + ... + 7611000037.

It is an arithmetic number, because the mean of its divisors is an integer number (11416500054).

Almost surely, 2^30444000142 is an apocalyptic number.

30444000142 is a deficient number, since it is larger than the sum of its proper divisors (15222000074).

30444000142 is a wasteful number, since it uses less digits than its factorization.

30444000142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15222000073.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 30444000142 its reverse (24100044403), we get a palindrome (54544044545).

The spelling of 30444000142 in words is "thirty billion, four hundred forty-four million, one hundred forty-two", and thus it is an aban number.