197438580 has 48 divisors (see below), whose sum is σ = 614255040. Its totient is φ = 52650144.

The previous prime is 197438569. The next prime is 197438581. The reversal of 197438580 is 85834791.

197438580 is a `hidden beast` number, since 197 + 4 + 385 + 80 = 666.

197438580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197438581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182274 + ... + 183353.

It is an arithmetic number, because the mean of its divisors is an integer number (12796980).

Almost surely, 2^197438580 is an apocalyptic number.

197438580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197438580 is an abundant number, since it is smaller than the sum of its proper divisors (416816460).

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

197438580 is a wasteful number, since it uses less digits than its factorization.

197438580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365645 (or 365637 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 197438580 is about 14051.2839271008. The cubic root of 197438580 is about 582.2962674821.

The spelling of 197438580 in words is "one hundred ninety-seven million, four hundred thirty-eight thousand, five hundred eighty".