280070461 has 16 divisors (see below), whose sum is σ = 333946368. Its totient is φ = 231897600.

The previous prime is 280070447. The next prime is 280070473. The reversal of 280070461 is 164070082.

It is not a de Polignac number, because 280070461 - 2⁹ = 280069949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280010461) 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 15 ways as a sum of consecutive naturals, for example, 18360 + ... + 29953.

It is an arithmetic number, because the mean of its divisors is an integer number (20871648).

Almost surely, 2^280070461 is an apocalyptic number.

It is an amenable number.

280070461 is a deficient number, since it is larger than the sum of its proper divisors (53875907).

280070461 is a wasteful number, since it uses less digits than its factorization.

280070461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48372.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 280070461 is about 16735.3058233186. The cubic root of 280070461 is about 654.2681342455.

The spelling of 280070461 in words is "two hundred eighty million, seventy thousand, four hundred sixty-one".