197886144 has 56 divisors (see below), whose sum is σ = 540479488. Its totient is φ = 63832320.

The previous prime is 197886127. The next prime is 197886151. The reversal of 197886144 is 441688791.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 197886093 and 197886102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10672 + ... + 22575.

Almost surely, 2^197886144 is an apocalyptic number.

It is an amenable number.

197886144 is an abundant number, since it is smaller than the sum of its proper divisors (342593344).

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

197886144 is a wasteful number, since it uses less digits than its factorization.

197886144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33293 (or 33283 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 197886144 is about 14067.2010009099. The cubic root of 197886144 is about 582.7359285474.

The spelling of 197886144 in words is "one hundred ninety-seven million, eight hundred eighty-six thousand, one hundred forty-four".