280397201 has 32 divisors (see below), whose sum is σ = 362465280. Its totient is φ = 211276800.

The previous prime is 280397179. The next prime is 280397207. The reversal of 280397201 is 102793082.

It is not a de Polignac number, because 280397201 - 2¹⁴ = 280380817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280397207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105671 + ... + 108291.

It is an arithmetic number, because the mean of its divisors is an integer number (11327040).

Almost surely, 2^280397201 is an apocalyptic number.

It is an amenable number.

280397201 is a deficient number, since it is larger than the sum of its proper divisors (82068079).

280397201 is a wasteful number, since it uses less digits than its factorization.

280397201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 280397201 is about 16745.0649744932. The cubic root of 280397201 is about 654.5224660668.

The spelling of 280397201 in words is "two hundred eighty million, three hundred ninety-seven thousand, two hundred one".