30161180 has 48 divisors (see below), whose sum is σ = 73166016. Its totient is φ = 10229760.

The previous prime is 30161177. The next prime is 30161203. The reversal of 30161180 is 8116103.

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

It is a congruent number.

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, 12470 + ... + 14690.

It is an arithmetic number, because the mean of its divisors is an integer number (1524292).

Almost surely, 2^30161180 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 30161180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36583008).

30161180 is an abundant number, since it is smaller than the sum of its proper divisors (43004836).

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

30161180 is a wasteful number, since it uses less digits than its factorization.

30161180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 30161180 is about 5491.9195187111. The cubic root of 30161180 is about 311.2787277990.

Adding to 30161180 its reverse (8116103), we get a palindrome (38277283).

The spelling of 30161180 in words is "thirty million, one hundred sixty-one thousand, one hundred eighty".