30722848 has 96 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 12849408.

The previous prime is 30722843. The next prime is 30722851. The reversal of 30722848 is 84822703.

It is a super-2 number, since 2×30722848² = 1887786778462208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30722843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1335765 + ... + 1335787.

It is an arithmetic number, because the mean of its divisors is an integer number (749700).

Almost surely, 2^30722848 is an apocalyptic number.

30722848 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30722848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35985600).

30722848 is an abundant number, since it is smaller than the sum of its proper divisors (41248352).

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

30722848 is a wasteful number, since it uses less digits than its factorization.

30722848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 30722848 is about 5542.8194991358. The cubic root of 30722848 is about 313.1990894172.

The spelling of 30722848 in words is "thirty million, seven hundred twenty-two thousand, eight hundred forty-eight".