622436394 has 16 divisors (see below), whose sum is σ = 1245913632. Its totient is φ = 207305328.

The previous prime is 622436389. The next prime is 622436401. The reversal of 622436394 is 493634226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35484 + ... + 50039.

It is an arithmetic number, because the mean of its divisors is an integer number (77869602).

Almost surely, 2^622436394 is an apocalyptic number.

622436394 is an abundant number, since it is smaller than the sum of its proper divisors (623477238).

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

622436394 is a wasteful number, since it uses less digits than its factorization.

622436394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86741.

The product of its digits is 186624, while the sum is 39.

The square root of 622436394 is about 24948.6751952884. The cubic root of 622436394 is about 853.8173834874.

The spelling of 622436394 in words is "six hundred twenty-two million, four hundred thirty-six thousand, three hundred ninety-four".