622309439 has 8 divisors (see below), whose sum is σ = 639675792. Its totient is φ = 605047360.

The previous prime is 622309433. The next prime is 622309481. The reversal of 622309439 is 934903226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 622309439 - 2⁴ = 622309423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622309433) 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, 13889 + ... + 37914.

It is an arithmetic number, because the mean of its divisors is an integer number (79959474).

Almost surely, 2^622309439 is an apocalyptic number.

622309439 is a deficient number, since it is larger than the sum of its proper divisors (17366353).

622309439 is a wasteful number, since it uses less digits than its factorization.

622309439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52137.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 622309439 is about 24946.1307420610. The cubic root of 622309439 is about 853.7593300287.

The spelling of 622309439 in words is "six hundred twenty-two million, three hundred nine thousand, four hundred thirty-nine".