280248442 has 16 divisors (see below), whose sum is σ = 442884960. Its totient is φ = 132633072.

The previous prime is 280248403. The next prime is 280248469. The reversal of 280248442 is 244842082.

It is a happy number.

280248442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 280248398 and 280248407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53868 + ... + 58840.

It is an arithmetic number, because the mean of its divisors is an integer number (27680310).

Almost surely, 2^280248442 is an apocalyptic number.

280248442 is a deficient number, since it is larger than the sum of its proper divisors (162636518).

280248442 is a wasteful number, since it uses less digits than its factorization.

280248442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477.

The product of its (nonzero) digits is 32768, while the sum is 34.

The square root of 280248442 is about 16740.6225093334. The cubic root of 280248442 is about 654.4066977558.

The spelling of 280248442 in words is "two hundred eighty million, two hundred forty-eight thousand, four hundred forty-two".