197464320 has 216 divisors, whose sum is σ = 696877272. Its totient is φ = 51609600.

The previous prime is 197464313. The next prime is 197464411. The reversal of 197464320 is 23464791.

197464320 is a `hidden beast` number, since 1 + 9 + 7 + 4 + 643 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2359296 + 195105024 = 1536^2 + 13968^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 702580 + ... + 702860.

Almost surely, 2^197464320 is an apocalyptic number.

197464320 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 197464320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348438636).

197464320 is an abundant number, since it is smaller than the sum of its proper divisors (499412952).

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

197464320 is a wasteful number, since it uses less digits than its factorization.

197464320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 197464320 is about 14052.1998277850. The cubic root of 197464320 is about 582.3215709708.

The spelling of 197464320 in words is "one hundred ninety-seven million, four hundred sixty-four thousand, three hundred twenty".