30143440040 has 128 divisors (see below), whose sum is σ = 78182184960. Its totient is φ = 10245844224.

The previous prime is 30143440039. The next prime is 30143440049. The reversal of 30143440040 is 4004434103.

It is a junction number, because it is equal to n+sod(n) for n = 30143439988 and 30143440015.

It is not an unprimeable number, because it can be changed into a prime (30143440049) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 31171637 + ... + 31172603.

It is an arithmetic number, because the mean of its divisors is an integer number (610798320).

Almost surely, 2^30143440040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30143440040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39091092480).

30143440040 is an abundant number, since it is smaller than the sum of its proper divisors (48038744920).

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

30143440040 is a wasteful number, since it uses less digits than its factorization.

30143440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1827 counting only the distinct ones).

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

Adding to 30143440040 its reverse (4004434103), we get a palindrome (34147874143).

The spelling of 30143440040 in words is "thirty billion, one hundred forty-three million, four hundred forty thousand, forty".