280097120 has 24 divisors (see below), whose sum is σ = 661729824. Its totient is φ = 112038784.

The previous prime is 280097099. The next prime is 280097123. The reversal of 280097120 is 21790082.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280097123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875144 + ... + 875463.

It is an arithmetic number, because the mean of its divisors is an integer number (27572076).

Almost surely, 2^280097120 is an apocalyptic number.

280097120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280097120 is an abundant number, since it is smaller than the sum of its proper divisors (381632704).

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

280097120 is a wasteful number, since it uses less digits than its factorization.

280097120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750622 (or 1750614 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 280097120 is about 16736.1022941424. The cubic root of 280097120 is about 654.2888928083.

The spelling of 280097120 in words is "two hundred eighty million, ninety-seven thousand, one hundred twenty".