280000461 has 16 divisors (see below), whose sum is σ = 404167680. Its totient is φ = 171401280.

The previous prime is 280000451. The next prime is 280000493. The reversal of 280000461 is 164000082.

It is not a de Polignac number, because 280000461 - 2⁹ = 279999949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280000451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11346 + ... + 26243.

It is an arithmetic number, because the mean of its divisors is an integer number (25260480).

Almost surely, 2^280000461 is an apocalyptic number.

It is an amenable number.

280000461 is a deficient number, since it is larger than the sum of its proper divisors (124167219).

280000461 is a wasteful number, since it uses less digits than its factorization.

280000461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37796.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 280000461 is about 16733.2143056856. The cubic root of 280000461 is about 654.2136210760.

The spelling of 280000461 in words is "two hundred eighty million, four hundred sixty-one", and thus it is an aban number.