280252896 has 192 divisors, whose sum is σ = 947552256. Its totient is φ = 70387200.

The previous prime is 280252873. The next prime is 280252937. The reversal of 280252896 is 698252082.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228541 + ... + 229763.

It is an arithmetic number, because the mean of its divisors is an integer number (4935168).

Almost surely, 2^280252896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280252896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473776128).

280252896 is an abundant number, since it is smaller than the sum of its proper divisors (667299360).

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

280252896 is a wasteful number, since it uses less digits than its factorization.

280252896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1277 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 280252896 is about 16740.7555385054. The cubic root of 280252896 is about 654.4101645749.

The spelling of 280252896 in words is "two hundred eighty million, two hundred fifty-two thousand, eight hundred ninety-six".