30444212440 has 16 divisors (see below), whose sum is σ = 68499478080. Its totient is φ = 12177684960.

The previous prime is 30444212431. The next prime is 30444212497. The reversal of 30444212440 is 4421244403.

It is a junction number, because it is equal to n+sod(n) for n = 30444212399 and 30444212408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380552616 + ... + 380552695.

It is an arithmetic number, because the mean of its divisors is an integer number (4281217380).

Almost surely, 2^30444212440 is an apocalyptic number.

It is an amenable number.

30444212440 is an abundant number, since it is smaller than the sum of its proper divisors (38055265640).

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

30444212440 is a wasteful number, since it uses less digits than its factorization.

30444212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761105322 (or 761105318 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 30444212440 its reverse (4421244403), we get a palindrome (34865456843).

The spelling of 30444212440 in words is "thirty billion, four hundred forty-four million, two hundred twelve thousand, four hundred forty".