197064220 has 48 divisors (see below), whose sum is σ = 426974688. Its totient is φ = 76343040.

The previous prime is 197064209. The next prime is 197064223. The reversal of 197064220 is 22460791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197064223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208950 + ... + 209890.

It is an arithmetic number, because the mean of its divisors is an integer number (8895306).

Almost surely, 2^197064220 is an apocalyptic number.

197064220 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 197064220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213487344).

197064220 is an abundant number, since it is smaller than the sum of its proper divisors (229910468).

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

197064220 is a wasteful number, since it uses less digits than its factorization.

197064220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 197064220 is about 14037.9564039785. The cubic root of 197064220 is about 581.9280072182.

The spelling of 197064220 in words is "one hundred ninety-seven million, sixty-four thousand, two hundred twenty".