280741064 has 32 divisors (see below), whose sum is σ = 535144320. Its totient is φ = 138047616.

The previous prime is 280741049. The next prime is 280741067. The reversal of 280741064 is 460147082.

It is a self number, because there is not a number n which added to its sum of digits gives 280741064.

It is not an unprimeable number, because it can be changed into a prime (280741067) 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, 377477 + ... + 378219.

It is an arithmetic number, because the mean of its divisors is an integer number (16723260).

Almost surely, 2^280741064 is an apocalyptic number.

It is an amenable number.

280741064 is a deficient number, since it is larger than the sum of its proper divisors (254403256).

280741064 is a wasteful number, since it uses less digits than its factorization.

280741064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 280741064 is about 16755.3294208141. The cubic root of 280741064 is about 654.7899130050.

The spelling of 280741064 in words is "two hundred eighty million, seven hundred forty-one thousand, sixty-four".