281024 has 14 divisors (see below), whose sum is σ = 557784. Its totient is φ = 140480.

The previous prime is 281023. The next prime is 281033. The reversal of 281024 is 420182.

It is a junction number, because it is equal to n+sod(n) for n = 280993 and 281011.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281024.

It is not an unprimeable number, because it can be changed into a prime (281023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2132 + ... + 2259.

2²⁸¹⁰²⁴ is an apocalyptic number.

It is an amenable number.

281024 is a deficient number, since it is larger than the sum of its proper divisors (276760).

281024 is an equidigital number, since it uses as much as digits as its factorization.

281024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403 (or 4393 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 281024 is about 530.1169682249. The cubic root of 281024 is about 65.5009808916.

The spelling of 281024 in words is "two hundred eighty-one thousand, twenty-four".