280064080 has 40 divisors (see below), whose sum is σ = 652395744. Its totient is φ = 111811200.

The previous prime is 280064053. The next prime is 280064093. The reversal of 280064080 is 80460082.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42615 + ... + 48745.

Almost surely, 2^280064080 is an apocalyptic number.

280064080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280064080 is an abundant number, since it is smaller than the sum of its proper divisors (372331664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280064080 is a wasteful number, since it uses less digits than its factorization.

280064080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715 (or 6709 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 280064080 is about 16735.1151773748. The cubic root of 280064080 is about 654.2631653570.

The spelling of 280064080 in words is "two hundred eighty million, sixty-four thousand, eighty".