30122560 has 84 divisors (see below), whose sum is σ = 77810868. Its totient is φ = 11102208.

The previous prime is 30122507. The next prime is 30122569. The reversal of 30122560 is 6522103.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12616704 + 17505856 = 3552^2 + 4184^2 .

It is not an unprimeable number, because it can be changed into a prime (30122569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53802 + ... + 54358.

Almost surely, 2^30122560 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 30122560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38905434).

30122560 is an abundant number, since it is smaller than the sum of its proper divisors (47688308).

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

30122560 is a wasteful number, since it uses less digits than its factorization.

30122560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30122560 is about 5488.4023176148. The cubic root of 30122560 is about 311.1458117001.

Adding to 30122560 its reverse (6522103), we get a palindrome (36644663).

The spelling of 30122560 in words is "thirty million, one hundred twenty-two thousand, five hundred sixty".