280468 has 6 divisors (see below), whose sum is σ = 490826. Its totient is φ = 140232.

The previous prime is 280463. The next prime is 280487. The reversal of 280468 is 864082.

280468 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 228484 + 51984 = 478^2 + 228^2 .

It is a d-powerful number, because it can be written as 2⁹ + 8 + 4 + 0 + 6⁷ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35055 + ... + 35062.

2²⁸⁰⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

280468 is a deficient number, since it is larger than the sum of its proper divisors (210358).

280468 is a wasteful number, since it uses less digits than its factorization.

280468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70121 (or 70119 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 280468 is about 529.5922960165. The cubic root of 280468 is about 65.4577549399.

The spelling of 280468 in words is "two hundred eighty thousand, four hundred sixty-eight".