197809044 has 24 divisors (see below), whose sum is σ = 461956320. Its totient is φ = 65878944.

The previous prime is 197809043. The next prime is 197809069. The reversal of 197809044 is 440908791.

197809044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 197808987 and 197809005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197809043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8562 + ... + 21654.

It is an arithmetic number, because the mean of its divisors is an integer number (19248180).

Almost surely, 2^197809044 is an apocalyptic number.

It is an amenable number.

197809044 is an abundant number, since it is smaller than the sum of its proper divisors (264147276).

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

197809044 is a wasteful number, since it uses less digits than its factorization.

197809044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14359 (or 14357 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 197809044 is about 14064.4603166990. The cubic root of 197809044 is about 582.6602372509.

The spelling of 197809044 in words is "one hundred ninety-seven million, eight hundred nine thousand, forty-four".