280000088 has 8 divisors (see below), whose sum is σ = 525000180. Its totient is φ = 140000040.

The previous prime is 280000087. The next prime is 280000109. The reversal of 280000088 is 880000082.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280000087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17499998 + ... + 17500013.

Almost surely, 2^280000088 is an apocalyptic number.

It is an amenable number.

280000088 is a deficient number, since it is larger than the sum of its proper divisors (245000092).

280000088 is a wasteful number, since it uses less digits than its factorization.

280000088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35000017 (or 35000013 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 280000088 is about 16733.2031601842. The cubic root of 280000088 is about 654.2133305743.

The spelling of 280000088 in words is "two hundred eighty million, eighty-eight", and thus it is an aban number.