30042032440 has 64 divisors (see below), whose sum is σ = 77273372160. Its totient is φ = 10297134720.

The previous prime is 30042032417. The next prime is 30042032467. The reversal of 30042032440 is 4423024003.

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, 1090435 + ... + 1117645.

It is an arithmetic number, because the mean of its divisors is an integer number (1207396440).

Almost surely, 2^30042032440 is an apocalyptic number.

It is an amenable number.

30042032440 is an abundant number, since it is smaller than the sum of its proper divisors (47231339720).

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

30042032440 is a wasteful number, since it uses less digits than its factorization.

30042032440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31172 (or 31168 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 30042032440 its reverse (4423024003), we get a palindrome (34465056443).

The spelling of 30042032440 in words is "thirty billion, forty-two million, thirty-two thousand, four hundred forty".