197190720 has 224 divisors, whose sum is σ = 720547200. Its totient is φ = 50706432.

The previous prime is 197190641. The next prime is 197190751. The reversal of 197190720 is 27091791.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250167 + ... + 250953.

Almost surely, 2^197190720 is an apocalyptic number.

197190720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197190720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360273600).

197190720 is an abundant number, since it is smaller than the sum of its proper divisors (523356480).

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

197190720 is a wasteful number, since it uses less digits than its factorization.

197190720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 197190720 is about 14042.4613227169. The cubic root of 197190720 is about 582.0524981871.

The spelling of 197190720 in words is "one hundred ninety-seven million, one hundred ninety thousand, seven hundred twenty".