30022520 has 48 divisors (see below), whose sum is σ = 74261880. Its totient is φ = 10915520.

The previous prime is 30022513. The next prime is 30022523. The reversal of 30022520 is 2522003.

It is a junction number, because it is equal to n+sod(n) for n = 30022495 and 30022504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30022523) 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 11 ways as a sum of consecutive naturals, for example, 1739 + ... + 7941.

Almost surely, 2^30022520 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 30022520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37130940).

30022520 is an abundant number, since it is smaller than the sum of its proper divisors (44239360).

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

30022520 is a wasteful number, since it uses less digits than its factorization.

30022520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236 (or 6221 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 30022520 is about 5479.2809747265. The cubic root of 30022520 is about 310.8009810110.

Adding to 30022520 its reverse (2522003), we get a palindrome (32544523).

The spelling of 30022520 in words is "thirty million, twenty-two thousand, five hundred twenty".