197228460 has 192 divisors, whose sum is σ = 657506304. Its totient is φ = 43545600.

The previous prime is 197228443. The next prime is 197228461. The reversal of 197228460 is 64822791.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (197228461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1089570 + ... + 1089750.

It is an arithmetic number, because the mean of its divisors is an integer number (3424512).

Almost surely, 2^197228460 is an apocalyptic number.

197228460 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 197228460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328753152).

197228460 is an abundant number, since it is smaller than the sum of its proper divisors (460277844).

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

197228460 is a wasteful number, since it uses less digits than its factorization.

197228460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 197228460 is about 14043.8050399455. The cubic root of 197228460 is about 582.0896285011.

It can be divided in two parts, 19722 and 8460, that added together give a palindrome (28182).

The spelling of 197228460 in words is "one hundred ninety-seven million, two hundred twenty-eight thousand, four hundred sixty".