197795520 has 280 divisors, whose sum is σ = 759006864. Its totient is φ = 48605184.

The previous prime is 197795519. The next prime is 197795569. The reversal of 197795520 is 25597791.

197795520 is a `hidden beast` number, since 1 + 97 + 7 + 9 + 552 + 0 = 666.

It is a super-3 number, since 3×197795520³ (a number of 26 digits) contains 333 as substring.

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

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 39 ways as a sum of consecutive naturals, for example, 336667 + ... + 337253.

Almost surely, 2^197795520 is an apocalyptic number.

197795520 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 197795520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379503432).

197795520 is an abundant number, since it is smaller than the sum of its proper divisors (561211344).

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

197795520 is a wasteful number, since it uses less digits than its factorization.

197795520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 45.

The square root of 197795520 is about 14063.9795221694. The cubic root of 197795520 is about 582.6469583221.

The spelling of 197795520 in words is "one hundred ninety-seven million, seven hundred ninety-five thousand, five hundred twenty".