197015328 has 120 divisors (see below), whose sum is σ = 599625180. Its totient is φ = 63383040.

The previous prime is 197015327. The next prime is 197015339. The reversal of 197015328 is 823510791.

It can be written as a sum of positive squares in 2 ways, for example, as 190108944 + 6906384 = 13788^2 + 2628^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 197015292 and 197015301.

It is not an unprimeable number, because it can be changed into a prime (197015321) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73858 + ... + 76478.

Almost surely, 2^197015328 is an apocalyptic number.

197015328 is a gapful number since it is divisible by the number (18) 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 197015328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299812590).

197015328 is an abundant number, since it is smaller than the sum of its proper divisors (402609852).

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

197015328 is a wasteful number, since it uses less digits than its factorization.

197015328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672 (or 2655 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 197015328 is about 14036.2148743883. The cubic root of 197015328 is about 581.8798774301.

The spelling of 197015328 in words is "one hundred ninety-seven million, fifteen thousand, three hundred twenty-eight".