30020922 has 32 divisors (see below), whose sum is σ = 67132800. Its totient is φ = 9944064.

The previous prime is 30020873. The next prime is 30020933. The reversal of 30020922 is 22902003.

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

It is a junction number, because it is equal to n+sod(n) for n = 30020895 and 30020904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7354 + ... + 10682.

It is an arithmetic number, because the mean of its divisors is an integer number (2097900).

Almost surely, 2^30020922 is an apocalyptic number.

30020922 is an abundant number, since it is smaller than the sum of its proper divisors (37111878).

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

30020922 is a wasteful number, since it uses less digits than its factorization.

30020922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30020922 is about 5479.1351507332. The cubic root of 30020922 is about 310.7954666085.

Adding to 30020922 its reverse (22902003), we get a palindrome (52922925).

The spelling of 30020922 in words is "thirty million, twenty thousand, nine hundred twenty-two".