30180822 has 64 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 8184960.

The previous prime is 30180817. The next prime is 30180827. The reversal of 30180822 is 22808103.

It is an interprime number because it is at equal distance from previous prime (30180817) and next prime (30180827).

It is a junction number, because it is equal to n+sod(n) for n = 30180792 and 30180801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30180827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86304 + ... + 86652.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^30180822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30180822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288000).

30180822 is an abundant number, since it is smaller than the sum of its proper divisors (42395178).

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

30180822 is a wasteful number, since it uses less digits than its factorization.

30180822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 30180822 is about 5493.7074913031. The cubic root of 30180822 is about 311.3462849481.

Adding to 30180822 its reverse (22808103), we get a palindrome (52988925).

The spelling of 30180822 in words is "thirty million, one hundred eighty thousand, eight hundred twenty-two".