30272280 has 64 divisors (see below), whose sum is σ = 91203840. Its totient is φ = 8038272.

The previous prime is 30272279. The next prime is 30272299. The reversal of 30272280 is 8227203.

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 30272280.

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, 41277 + ... + 42003.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^30272280 is an apocalyptic number.

30272280 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 30272280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45601920).

30272280 is an abundant number, since it is smaller than the sum of its proper divisors (60931560).

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

30272280 is a wasteful number, since it uses less digits than its factorization.

30272280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 30272280 is about 5502.0250817313. The cubic root of 30272280 is about 311.6604623178.

Adding to 30272280 its reverse (8227203), we get a palindrome (38499483).

The spelling of 30272280 in words is "thirty million, two hundred seventy-two thousand, two hundred eighty".