280200940 has 24 divisors (see below), whose sum is σ = 607404672. Its totient is φ = 108464640.

The previous prime is 280200931. The next prime is 280201001. The reversal of 280200940 is 49002082.

280200940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 225349 + ... + 226588.

It is an arithmetic number, because the mean of its divisors is an integer number (25308528).

Almost surely, 2^280200940 is an apocalyptic number.

280200940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280200940 is an abundant number, since it is smaller than the sum of its proper divisors (327203732).

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

280200940 is a wasteful number, since it uses less digits than its factorization.

280200940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451977 (or 451975 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 280200940 is about 16739.2036847635. The cubic root of 280200940 is about 654.3697217745.

The spelling of 280200940 in words is "two hundred eighty million, two hundred thousand, nine hundred forty".