622698144 has 24 divisors (see below), whose sum is σ = 1634582880. Its totient is φ = 207566016.

The previous prime is 622698079. The next prime is 622698149. The reversal of 622698144 is 441896226.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 622698096 and 622698105.

It is not an unprimeable number, because it can be changed into a prime (622698149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3243124 + ... + 3243315.

It is an arithmetic number, because the mean of its divisors is an integer number (68107620).

Almost surely, 2^622698144 is an apocalyptic number.

It is an amenable number.

622698144 is an abundant number, since it is smaller than the sum of its proper divisors (1011884736).

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

622698144 is a wasteful number, since it uses less digits than its factorization.

622698144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486452 (or 6486444 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 622698144 is about 24953.9204134340. The cubic root of 622698144 is about 853.9370505368.

The spelling of 622698144 in words is "six hundred twenty-two million, six hundred ninety-eight thousand, one hundred forty-four".