280849452 has 96 divisors (see below), whose sum is σ = 753665472. Its totient is φ = 80633856.

The previous prime is 280849447. The next prime is 280849501. The reversal of 280849452 is 254948082.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362938 + ... + 363710.

It is an arithmetic number, because the mean of its divisors is an integer number (7850682).

Almost surely, 2^280849452 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 280849452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376832736).

280849452 is an abundant number, since it is smaller than the sum of its proper divisors (472816020).

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

280849452 is a wasteful number, since it uses less digits than its factorization.

280849452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 280849452 is about 16758.5635422610. The cubic root of 280849452 is about 654.8741688629.

The spelling of 280849452 in words is "two hundred eighty million, eight hundred forty-nine thousand, four hundred fifty-two".