197412228 has 144 divisors (see below), whose sum is σ = 590728320. Its totient is φ = 57106944.

The previous prime is 197412181. The next prime is 197412283. The reversal of 197412228 is 822214791.

197412228 is a `hidden beast` number, since 19 + 7 + 412 + 228 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 = 197412192 and 197412201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214353 + ... + 215271.

It is an arithmetic number, because the mean of its divisors is an integer number (4102280).

Almost surely, 2^197412228 is an apocalyptic number.

197412228 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 197412228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295364160).

197412228 is an abundant number, since it is smaller than the sum of its proper divisors (393316092).

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

197412228 is a wasteful number, since it uses less digits than its factorization.

197412228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 954 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 197412228 is about 14050.3461879058. The cubic root of 197412228 is about 582.2703600937.

The spelling of 197412228 in words is "one hundred ninety-seven million, four hundred twelve thousand, two hundred twenty-eight".