622449 has 24 divisors (see below), whose sum is σ = 978432. Its totient is φ = 380160.

The previous prime is 622423. The next prime is 622477. The reversal of 622449 is 944226.

It is not a de Polignac number, because 622449 - 2⁹ = 621937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6369 + ... + 6465.

It is an arithmetic number, because the mean of its divisors is an integer number (40768).

2⁶²²⁴⁴⁹ is an apocalyptic number.

622449 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

622449 is a deficient number, since it is larger than the sum of its proper divisors (355983).

622449 is a wasteful number, since it uses less digits than its factorization.

622449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 154 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 622449 is about 788.9543713042. The cubic root of 622449 is about 85.3823147476.

The spelling of 622449 in words is "six hundred twenty-two thousand, four hundred forty-nine".