280014680 has 64 divisors (see below), whose sum is σ = 692858880. Its totient is φ = 101001600.

The previous prime is 280014619. The next prime is 280014689. The reversal of 280014680 is 86410082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280014689) 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 15 ways as a sum of consecutive naturals, for example, 53375 + ... + 58385.

It is an arithmetic number, because the mean of its divisors is an integer number (10825920).

Almost surely, 2^280014680 is an apocalyptic number.

280014680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280014680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346429440).

280014680 is an abundant number, since it is smaller than the sum of its proper divisors (412844200).

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

280014680 is a wasteful number, since it uses less digits than its factorization.

280014680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160 (or 5156 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 280014680 is about 16733.6391738319. The cubic root of 280014680 is about 654.2246949935.

The spelling of 280014680 in words is "two hundred eighty million, fourteen thousand, six hundred eighty".