30242203440 has 40 divisors (see below), whose sum is σ = 93750831408. Its totient is φ = 8064587520.

The previous prime is 30242203427. The next prime is 30242203441. The reversal of 30242203440 is 4430224203.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a self number, because there is not a number n which added to its sum of digits gives 30242203440.

It is not an unprimeable number, because it can be changed into a prime (30242203441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63004351 + ... + 63004830.

Almost surely, 2^30242203440 is an apocalyptic number.

30242203440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30242203440 is an abundant number, since it is smaller than the sum of its proper divisors (63508627968).

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

30242203440 is a wasteful number, since it uses less digits than its factorization.

30242203440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126009197 (or 126009191 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 30242203440 its reverse (4430224203), we get a palindrome (34672427643).

The spelling of 30242203440 in words is "thirty billion, two hundred forty-two million, two hundred three thousand, four hundred forty".