197331264 has 252 divisors, whose sum is σ = 651676116. Its totient is φ = 56733696.

The previous prime is 197331247. The next prime is 197331287. The reversal of 197331264 is 462133791.

It can be written as a sum of positive squares in 2 ways, for example, as 67371264 + 129960000 = 8208^2 + 11400^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2703132 + ... + 2703204.

Almost surely, 2^197331264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197331264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325838058).

197331264 is an abundant number, since it is smaller than the sum of its proper divisors (454344852).

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

197331264 is a wasteful number, since it uses less digits than its factorization.

197331264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 110 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 197331264 is about 14047.4646822834. The cubic root of 197331264 is about 582.1907476937.

The spelling of 197331264 in words is "one hundred ninety-seven million, three hundred thirty-one thousand, two hundred sixty-four".