30243112440 has 64 divisors (see below), whose sum is σ = 95504572800. Its totient is φ = 7640364672.

The previous prime is 30243112399. The next prime is 30243112451. The reversal of 30243112440 is 4421134203.

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 30243112440.

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, 6629982 + ... + 6634541.

It is an arithmetic number, because the mean of its divisors is an integer number (1492258950).

Almost surely, 2^30243112440 is an apocalyptic number.

30243112440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30243112440 is an abundant number, since it is smaller than the sum of its proper divisors (65261460360).

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

30243112440 is a wasteful number, since it uses less digits than its factorization.

30243112440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13264556 (or 13264552 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 30243112440 its reverse (4421134203), we get a palindrome (34664246643).

The spelling of 30243112440 in words is "thirty billion, two hundred forty-three million, one hundred twelve thousand, four hundred forty".