30550013440 has 40 divisors (see below), whose sum is σ = 73248436800. Its totient is φ = 12220004352.

The previous prime is 30550013411. The next prime is 30550013441. The reversal of 30550013440 is 4431005503.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30550013441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5964240 + ... + 5969359.

It is an arithmetic number, because the mean of its divisors is an integer number (1831210920).

Almost surely, 2^30550013440 is an apocalyptic number.

It is an amenable number.

30550013440 is an abundant number, since it is smaller than the sum of its proper divisors (42698423360).

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

30550013440 is an equidigital number, since it uses as much as digits as its factorization.

30550013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11933622 (or 11933606 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 30550013440 its reverse (4431005503), we get a palindrome (34981018943).

The spelling of 30550013440 in words is "thirty billion, five hundred fifty million, thirteen thousand, four hundred forty".