30422656 has 128 divisors (see below), whose sum is σ = 74027520. Its totient is φ = 12288000.

The previous prime is 30422641. The next prime is 30422659. The reversal of 30422656 is 65622403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (30422659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741996 + ... + 742036.

It is an arithmetic number, because the mean of its divisors is an integer number (578340).

Almost surely, 2^30422656 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 30422656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37013760).

30422656 is an abundant number, since it is smaller than the sum of its proper divisors (43604864).

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

30422656 is a wasteful number, since it uses less digits than its factorization.

30422656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 30422656 is about 5515.6736669241. The cubic root of 30422656 is about 312.1756626400.

The spelling of 30422656 in words is "thirty million, four hundred twenty-two thousand, six hundred fifty-six".