30822768 has 100 divisors (see below), whose sum is σ = 94525200. Its totient is φ = 9662976.

The previous prime is 30822761. The next prime is 30822791. The reversal of 30822768 is 86722803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30822761) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21333 + ... + 22731.

It is an arithmetic number, because the mean of its divisors is an integer number (945252).

Almost surely, 2^30822768 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 30822768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47262600).

30822768 is an abundant number, since it is smaller than the sum of its proper divisors (63702432).

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

30822768 is a wasteful number, since it uses less digits than its factorization.

30822768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 1421 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 30822768 is about 5551.8256456773. The cubic root of 30822768 is about 313.5382613955.

The spelling of 30822768 in words is "thirty million, eight hundred twenty-two thousand, seven hundred sixty-eight".