280740196 has 24 divisors (see below), whose sum is σ = 542422944. Its totient is φ = 126070080.

The previous prime is 280740151. The next prime is 280740197. The reversal of 280740196 is 691047082.

It is not an unprimeable number, because it can be changed into a prime (280740197) 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 7 ways as a sum of consecutive naturals, for example, 34785 + ... + 42088.

It is an arithmetic number, because the mean of its divisors is an integer number (22600956).

Almost surely, 2^280740196 is an apocalyptic number.

It is an amenable number.

280740196 is a deficient number, since it is larger than the sum of its proper divisors (261682748).

280740196 is a wasteful number, since it uses less digits than its factorization.

280740196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76971 (or 76969 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 280740196 is about 16755.3035185878. The cubic root of 280740196 is about 654.7892381741.

The spelling of 280740196 in words is "two hundred eighty million, seven hundred forty thousand, one hundred ninety-six".