197941920 has 96 divisors (see below), whose sum is σ = 680218560. Its totient is φ = 47984640.

The previous prime is 197941903. The next prime is 197941949. The reversal of 197941920 is 29149791.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13465 + ... + 24024.

It is an arithmetic number, because the mean of its divisors is an integer number (7085610).

Almost surely, 2^197941920 is an apocalyptic number.

197941920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197941920 is an abundant number, since it is smaller than the sum of its proper divisors (482276640).

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

197941920 is a wasteful number, since it uses less digits than its factorization.

197941920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37518 (or 37510 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 197941920 is about 14069.1833451697. The cubic root of 197941920 is about 582.7906732021.

The spelling of 197941920 in words is "one hundred ninety-seven million, nine hundred forty-one thousand, nine hundred twenty".