280124228 has 6 divisors (see below), whose sum is σ = 490217406. Its totient is φ = 140062112.

The previous prime is 280124227. The next prime is 280124269. The reversal of 280124228 is 822421082.

280124228 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 245925124 + 34199104 = 15682^2 + 5848^2 .

It is a super-2 number, since 2×280124228² = 156939166225191968, which contains 22 as substring.

280124228 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 280124228.

It is not an unprimeable number, because it can be changed into a prime (280124227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35015525 + ... + 35015532.

It is an arithmetic number, because the mean of its divisors is an integer number (81702901).

Almost surely, 2^280124228 is an apocalyptic number.

It is an amenable number.

280124228 is a deficient number, since it is larger than the sum of its proper divisors (210093178).

280124228 is a wasteful number, since it uses less digits than its factorization.

280124228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70031061 (or 70031059 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 280124228 is about 16736.9121405354. The cubic root of 280124228 is about 654.3099996434.

The spelling of 280124228 in words is "two hundred eighty million, one hundred twenty-four thousand, two hundred twenty-eight".