622281 has 16 divisors (see below), whose sum is σ = 918720. Its totient is φ = 371520.

The previous prime is 622277. The next prime is 622301. The reversal of 622281 is 182226.

It is not a de Polignac number, because 622281 - 2² = 622277 is a prime.

It is a super-2 number, since 2×622281² = 774467285922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (622241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3511 + ... + 3683.

It is an arithmetic number, because the mean of its divisors is an integer number (57420).

2⁶²²²⁸¹ is an apocalyptic number.

It is an amenable number.

622281 is a deficient number, since it is larger than the sum of its proper divisors (296439).

622281 is a wasteful number, since it uses less digits than its factorization.

622281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its digits is 384, while the sum is 21.

The square root of 622281 is about 788.8478940835. The cubic root of 622281 is about 85.3746324478.

It can be divided in two parts, 622 and 281, that added together give a triangular number (903 = T₄₂).

The spelling of 622281 in words is "six hundred twenty-two thousand, two hundred eighty-one".