30822012 has 96 divisors (see below), whose sum is σ = 89140800. Its totient is φ = 9144576.

The previous prime is 30822007. The next prime is 30822017. The reversal of 30822012 is 21022803.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30822007) and next prime (30822017).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30822017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40338 + ... + 41094.

It is an arithmetic number, because the mean of its divisors is an integer number (928550).

Almost surely, 2^30822012 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 30822012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44570400).

30822012 is an abundant number, since it is smaller than the sum of its proper divisors (58318788).

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

30822012 is a wasteful number, since it uses less digits than its factorization.

30822012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 30822012 is about 5551.7575595481. The cubic root of 30822012 is about 313.5356979564.

Adding to 30822012 its reverse (21022803), we get a palindrome (51844815).

The spelling of 30822012 in words is "thirty million, eight hundred twenty-two thousand, twelve".