30245280 has 192 divisors, whose sum is σ = 106178688. Its totient is φ = 7188480.

The previous prime is 30245273. The next prime is 30245291. The reversal of 30245280 is 8254203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30245280.

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, 230815 + ... + 230945.

It is an arithmetic number, because the mean of its divisors is an integer number (553014).

Almost surely, 2^30245280 is an apocalyptic number.

30245280 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 30245280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53089344).

30245280 is an abundant number, since it is smaller than the sum of its proper divisors (75933408).

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

30245280 is a wasteful number, since it uses less digits than its factorization.

30245280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 30245280 is about 5499.5708923515. The cubic root of 30245280 is about 311.5677775749.

Adding to 30245280 its reverse (8254203), we get a palindrome (38499483).

The spelling of 30245280 in words is "thirty million, two hundred forty-five thousand, two hundred eighty".