622431 has 8 divisors (see below), whose sum is σ = 922160. Its totient is φ = 414936.

The previous prime is 622423. The next prime is 622477. The reversal of 622431 is 134226.

It is a happy number.

622431 is a `hidden beast` number, since 622 + 43 + 1 = 666.

It is not a de Polignac number, because 622431 - 2³ = 622423 is a prime.

It is a super-2 number, since 2×622431² = 774840699522, which contains 22 as substring.

It is a Duffinian number.

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 622431.

It is not an unprimeable number, because it can be changed into a prime (622481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11500 + ... + 11553.

It is an arithmetic number, because the mean of its divisors is an integer number (115270).

2⁶²²⁴³¹ is an apocalyptic number.

622431 is a deficient number, since it is larger than the sum of its proper divisors (299729).

622431 is a wasteful number, since it uses less digits than its factorization.

622431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23062 (or 23056 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 622431 is about 788.9429637179. The cubic root of 622431 is about 85.3814917102.

Adding to 622431 its reverse (134226), we get a palindrome (756657).

The spelling of 622431 in words is "six hundred twenty-two thousand, four hundred thirty-one".