280282080 has 96 divisors (see below), whose sum is σ = 950824224. Its totient is φ = 68990976.

The previous prime is 280282039. The next prime is 280282099. The reversal of 280282080 is 80282082.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16219 + ... + 28698.

It is an arithmetic number, because the mean of its divisors is an integer number (9904419).

Almost surely, 2^280282080 is an apocalyptic number.

280282080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280282080 is an abundant number, since it is smaller than the sum of its proper divisors (670542144).

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

280282080 is a wasteful number, since it uses less digits than its factorization.

280282080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44948 (or 44940 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 280282080 is about 16741.6271610617. The cubic root of 280282080 is about 654.4328793486.

The spelling of 280282080 in words is "two hundred eighty million, two hundred eighty-two thousand, eighty".