622144090 has 8 divisors (see below), whose sum is σ = 1119859380. Its totient is φ = 248857632.

The previous prime is 622144079. The next prime is 622144091. The reversal of 622144090 is 90441226.

It can be written as a sum of positive squares in 2 ways, for example, as 621056241 + 1087849 = 24921^2 + 1043^2 .

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

It is not an unprimeable number, because it can be changed into a prime (622144091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31107195 + ... + 31107214.

Almost surely, 2^622144090 is an apocalyptic number.

622144090 is a deficient number, since it is larger than the sum of its proper divisors (497715290).

622144090 is a wasteful number, since it uses less digits than its factorization.

622144090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62214416.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 622144090 is about 24942.8164007195. The cubic root of 622144090 is about 853.6837080807.

The spelling of 622144090 in words is "six hundred twenty-two million, one hundred forty-four thousand, ninety".