30120270 has 64 divisors (see below), whose sum is σ = 75816000. Its totient is φ = 7648256.

The previous prime is 30120239. The next prime is 30120289. The reversal of 30120270 is 7202103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77236 + ... + 77624.

It is an arithmetic number, because the mean of its divisors is an integer number (1184625).

Almost surely, 2^30120270 is an apocalyptic number.

30120270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30120270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37908000).

30120270 is an abundant number, since it is smaller than the sum of its proper divisors (45695730).

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

30120270 is a wasteful number, since it uses less digits than its factorization.

30120270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 30120270 is about 5488.1936919172. The cubic root of 30120270 is about 311.1379267797.

Adding to 30120270 its reverse (7202103), we get a palindrome (37322373).

The spelling of 30120270 in words is "thirty million, one hundred twenty thousand, two hundred seventy".