280622 has 8 divisors (see below), whose sum is σ = 423696. Its totient is φ = 139392.

The previous prime is 280613. The next prime is 280627. The reversal of 280622 is 226082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 280594 and 280603.

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 280622.

It is not an unprimeable number, because it can be changed into a prime (280627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (52962).

2²⁸⁰⁶²² is an apocalyptic number.

280622 is a deficient number, since it is larger than the sum of its proper divisors (143074).

280622 is a wasteful number, since it uses less digits than its factorization.

280622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 280622 is about 529.7376709278. The cubic root of 280622 is about 65.4697333115.

The spelling of 280622 in words is "two hundred eighty thousand, six hundred twenty-two".