30017120 has 48 divisors (see below), whose sum is σ = 81049248. Its totient is φ = 10291200.

The previous prime is 30017107. The next prime is 30017123. The reversal of 30017120 is 2171003.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 30017095 and 30017104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30017123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12281 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (1688526).

Almost surely, 2^30017120 is an apocalyptic number.

It is an amenable number.

30017120 is an abundant number, since it is smaller than the sum of its proper divisors (51032128).

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

30017120 is a wasteful number, since it uses less digits than its factorization.

30017120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26823 (or 26815 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 30017120 is about 5478.7881871815. The cubic root of 30017120 is about 310.7823458228.

Adding to 30017120 its reverse (2171003), we get a palindrome (32188123).

The spelling of 30017120 in words is "thirty million, seventeen thousand, one hundred twenty".