280673043 has 48 divisors (see below), whose sum is σ = 459763200. Its totient is φ = 149151744.

The previous prime is 280673033. The next prime is 280673087. The reversal of 280673043 is 340376082.

It is not a de Polignac number, because 280673043 - 2⁴ = 280673027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280672995 and 280673013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280673023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 624883 + ... + 625331.

It is an arithmetic number, because the mean of its divisors is an integer number (9578400).

Almost surely, 2^280673043 is an apocalyptic number.

280673043 is a deficient number, since it is larger than the sum of its proper divisors (179090157).

280673043 is a wasteful number, since it uses less digits than its factorization.

280673043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 280673043 is about 16753.2994660753. The cubic root of 280673043 is about 654.7370255249.

The spelling of 280673043 in words is "two hundred eighty million, six hundred seventy-three thousand, forty-three".