622349 has 12 divisors (see below), whose sum is σ = 780444. Its totient is φ = 491904.

The previous prime is 622337. The next prime is 622351. The reversal of 622349 is 943226.

622349 = 26² + 27² + ... + 123².

It can be written as a sum of positive squares in 2 ways, for example, as 354025 + 268324 = 595^2 + 518^2 .

It is not a de Polignac number, because 622349 - 2⁴ = 622333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149 + ... + 1125.

It is an arithmetic number, because the mean of its divisors is an integer number (65037).

2⁶²²³⁴⁹ is an apocalyptic number.

It is an amenable number.

622349 is a deficient number, since it is larger than the sum of its proper divisors (158095).

622349 is a wasteful number, since it uses less digits than its factorization.

622349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 997 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 622349 is about 788.8909937374. The cubic root of 622349 is about 85.3777421166.

The spelling of 622349 in words is "six hundred twenty-two thousand, three hundred forty-nine".