197884144 has 10 divisors (see below), whose sum is σ = 383400560. Its totient is φ = 98942064.

The previous prime is 197884123. The next prime is 197884217. The reversal of 197884144 is 441488791.

It is a super-2 number, since 2×197884144² = 78316268893225472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197884094 and 197884103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6183864 + ... + 6183895.

It is an arithmetic number, because the mean of its divisors is an integer number (38340056).

Almost surely, 2^197884144 is an apocalyptic number.

It is an amenable number.

197884144 is a deficient number, since it is larger than the sum of its proper divisors (185516416).

197884144 is a wasteful number, since it uses less digits than its factorization.

197884144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12367767 (or 12367761 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 197884144 is about 14067.1299133832. The cubic root of 197884144 is about 582.7339653380.

It can be divided in two parts, 19788 and 4144, that added together give a palindrome (23932).

The spelling of 197884144 in words is "one hundred ninety-seven million, eight hundred eighty-four thousand, one hundred forty-four".