30840979456 has 133 divisors (see below), whose sum is σ = 71962060759. Its totient is φ = 13217562624.

The previous prime is 30840979423. The next prime is 30840979459. The reversal of 30840979456 is 65497904803.

The square root of 30840979456 is 175616.

The cubic root of 30840979456 is 3136.

It is a perfect power (a square, a cube, a 6-th power), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30840979397 and 30840979406.

It is not an unprimeable number, because it can be changed into a prime (30840979459) by changing a digit.

It is a polite number, since it can be written in 6 ways as a sum of consecutive naturals, for example, 4405854205 + ... + 4405854211.

Almost surely, 2^30840979456 is an apocalyptic number.

30840979456 is the 175616-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30840979456

30840979456 is an abundant number, since it is smaller than the sum of its proper divisors (41121081303).

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

30840979456 is an frugal number, since it uses more digits than its factorization.

30840979456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 9 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 30840979456 in words is "thirty billion, eight hundred forty million, nine hundred seventy-nine thousand, four hundred fifty-six".