280452348 has 96 divisors (see below), whose sum is σ = 800163840. Its totient is φ = 84942000.

The previous prime is 280452323. The next prime is 280452391. The reversal of 280452348 is 843254082.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142773 + ... + 144723.

It is an arithmetic number, because the mean of its divisors is an integer number (8335040).

Almost surely, 2^280452348 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 280452348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400081920).

280452348 is an abundant number, since it is smaller than the sum of its proper divisors (519711492).

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

280452348 is a wasteful number, since it uses less digits than its factorization.

280452348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1967 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 280452348 is about 16746.7115577955. The cubic root of 280452348 is about 654.5653725631.

The spelling of 280452348 in words is "two hundred eighty million, four hundred fifty-two thousand, three hundred forty-eight".