30040343542 has 24 divisors (see below), whose sum is σ = 49579701696. Its totient is φ = 13640814000.

The previous prime is 30040343521. The next prime is 30040343591. The reversal of 30040343542 is 24534304003.

It is a super-2 number, since 2×30040343542² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30040343542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177192 + ... + 302452.

It is an arithmetic number, because the mean of its divisors is an integer number (2065820904).

Almost surely, 2^30040343542 is an apocalyptic number.

30040343542 is a deficient number, since it is larger than the sum of its proper divisors (19539358154).

30040343542 is a wasteful number, since it uses less digits than its factorization.

30040343542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126276 (or 126265 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 30040343542 its reverse (24534304003), we get a palindrome (54574647545).

The spelling of 30040343542 in words is "thirty billion, forty million, three hundred forty-three thousand, five hundred forty-two".