280242795 has 32 divisors (see below), whose sum is σ = 513404928. Its totient is φ = 127870848.

The previous prime is 280242791. The next prime is 280242827. The reversal of 280242795 is 597242082.

It is not a de Polignac number, because 280242795 - 2² = 280242791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (280242791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61537 + ... + 65933.

It is an arithmetic number, because the mean of its divisors is an integer number (16043904).

Almost surely, 2^280242795 is an apocalyptic number.

280242795 is a deficient number, since it is larger than the sum of its proper divisors (233162133).

280242795 is a wasteful number, since it uses less digits than its factorization.

280242795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 280242795 is about 16740.4538468944. The cubic root of 280242795 is about 654.4023022993.

The spelling of 280242795 in words is "two hundred eighty million, two hundred forty-two thousand, seven hundred ninety-five".