622434 has 16 divisors (see below), whose sum is σ = 1253088. Its totient is φ = 206112.

The previous prime is 622423. The next prime is 622477. The reversal of 622434 is 434226.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 622434.

It is a congruent number.

It is an unprimeable number.

622434 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (78318).

2⁶²²⁴³⁴ is an apocalyptic number.

622434 is an abundant number, since it is smaller than the sum of its proper divisors (630654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622434 is a wasteful number, since it uses less digits than its factorization.

622434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689.

The product of its digits is 1152, while the sum is 21.

The square root of 622434 is about 788.9448649937. The cubic root of 622434 is about 85.3816288842.

The spelling of 622434 in words is "six hundred twenty-two thousand, four hundred thirty-four".