30560420 has 48 divisors (see below), whose sum is σ = 72285696. Its totient is φ = 10752000.

The previous prime is 30560419. The next prime is 30560429. The reversal of 30560420 is 2406503.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30560392 and 30560401.

It is not an unprimeable number, because it can be changed into a prime (30560429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4580 + ... + 9060.

It is an arithmetic number, because the mean of its divisors is an integer number (1505952).

Almost surely, 2^30560420 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 30560420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36142848).

30560420 is an abundant number, since it is smaller than the sum of its proper divisors (41725276).

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

30560420 is a wasteful number, since it uses less digits than its factorization.

30560420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30560420 is about 5528.1479719704. The cubic root of 30560420 is about 312.6461652237.

Adding to 30560420 its reverse (2406503), we get a palindrome (32966923).

The spelling of 30560420 in words is "thirty million, five hundred sixty thousand, four hundred twenty".