30440043040 has 96 divisors (see below), whose sum is σ = 78581845440. Its totient is φ = 11050828800.

The previous prime is 30440043031. The next prime is 30440043061. The reversal of 30440043040 is 4034004403.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 1075470 + ... + 1103410.

It is an arithmetic number, because the mean of its divisors is an integer number (818560890).

Almost surely, 2^30440043040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30440043040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39290922720).

30440043040 is an abundant number, since it is smaller than the sum of its proper divisors (48141802400).

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

30440043040 is a wasteful number, since it uses less digits than its factorization.

30440043040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28586 (or 28578 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 30440043040 its reverse (4034004403), we get a palindrome (34474047443).

The spelling of 30440043040 in words is "thirty billion, four hundred forty million, forty-three thousand, forty".