30145080 has 128 divisors (see below), whose sum is σ = 109486080. Its totient is φ = 6481920.

The previous prime is 30145067. The next prime is 30145081. The reversal of 30145080 is 8054103.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30145081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13225 + ... + 15335.

It is an arithmetic number, because the mean of its divisors is an integer number (855360).

Almost surely, 2^30145080 is an apocalyptic number.

30145080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30145080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54743040).

30145080 is an abundant number, since it is smaller than the sum of its proper divisors (79341000).

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

30145080 is a wasteful number, since it uses less digits than its factorization.

30145080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2145 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 30145080 is about 5490.4535331792. The cubic root of 30145080 is about 311.2233312096.

Adding to 30145080 its reverse (8054103), we get a palindrome (38199183).

The spelling of 30145080 in words is "thirty million, one hundred forty-five thousand, eighty".