280883442 has 16 divisors (see below), whose sum is σ = 642019392. Its totient is φ = 80252400.

The previous prime is 280883431. The next prime is 280883459. The reversal of 280883442 is 244388082.

It is a self number, because there is not a number n which added to its sum of digits gives 280883442.

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, 3343809 + ... + 3343892.

It is an arithmetic number, because the mean of its divisors is an integer number (40126212).

Almost surely, 2^280883442 is an apocalyptic number.

280883442 is an abundant number, since it is smaller than the sum of its proper divisors (361135950).

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

280883442 is a wasteful number, since it uses less digits than its factorization.

280883442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6687713.

The product of its (nonzero) digits is 98304, while the sum is 39.

The square root of 280883442 is about 16759.5776199760. The cubic root of 280883442 is about 654.9005866642.

The spelling of 280883442 in words is "two hundred eighty million, eight hundred eighty-three thousand, four hundred forty-two".