30402980944 has 80 divisors (see below), whose sum is σ = 68101355520. Its totient is φ = 12879584640.

The previous prime is 30402980939. The next prime is 30402980969. The reversal of 30402980944 is 44908920403.

It is a super-2 number, since 2×30402980944² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30402980944.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3854797 + ... + 3862675.

It is an arithmetic number, because the mean of its divisors is an integer number (851266944).

Almost surely, 2^30402980944 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 30402980944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34050677760).

30402980944 is an abundant number, since it is smaller than the sum of its proper divisors (37698374576).

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

30402980944 is a wasteful number, since it uses less digits than its factorization.

30402980944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8288 (or 8282 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 30402980944 in words is "thirty billion, four hundred two million, nine hundred eighty thousand, nine hundred forty-four".