30561080 has 32 divisors (see below), whose sum is σ = 75014640. Its totient is φ = 11112960.

The previous prime is 30561067. The next prime is 30561119. The reversal of 30561080 is 8016503.

It is a super-2 number, since 2×30561080² = 1867959221532800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34289 + ... + 35168.

Almost surely, 2^30561080 is an apocalyptic number.

It is an amenable number.

30561080 is an abundant number, since it is smaller than the sum of its proper divisors (44453560).

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

30561080 is a wasteful number, since it uses less digits than its factorization.

30561080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69479 (or 69475 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 30561080 is about 5528.2076661428. The cubic root of 30561080 is about 312.6484159015.

Adding to 30561080 its reverse (8016503), we get a palindrome (38577583).

The spelling of 30561080 in words is "thirty million, five hundred sixty-one thousand, eighty".