197622144 has 96 divisors (see below), whose sum is σ = 602189640. Its totient is φ = 61992960.

The previous prime is 197622137. The next prime is 197622149. The reversal of 197622144 is 441226791.

It is a happy number.

197622144 is a `hidden beast` number, since 19 + 7 + 622 + 14 + 4 = 666.

197622144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 197622099 and 197622108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197622149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14539 + ... + 24629.

Almost surely, 2^197622144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197622144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301094820).

197622144 is an abundant number, since it is smaller than the sum of its proper divisors (404567496).

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

197622144 is a wasteful number, since it uses less digits than its factorization.

197622144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10128 (or 10113 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 197622144 is about 14057.8143393630. The cubic root of 197622144 is about 582.4766704601.

The spelling of 197622144 in words is "one hundred ninety-seven million, six hundred twenty-two thousand, one hundred forty-four".