197007426 has 96 divisors (see below), whose sum is σ = 535062528. Its totient is φ = 50893920.

The previous prime is 197007401. The next prime is 197007427. The reversal of 197007426 is 624700791.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197007427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425271 + ... + 425733.

It is an arithmetic number, because the mean of its divisors is an integer number (5573568).

Almost surely, 2^197007426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197007426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267531264).

197007426 is an abundant number, since it is smaller than the sum of its proper divisors (338055102).

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

197007426 is a wasteful number, since it uses less digits than its factorization.

197007426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 197007426 is about 14035.9333854219. The cubic root of 197007426 is about 581.8720978726.

The spelling of 197007426 in words is "one hundred ninety-seven million, seven thousand, four hundred twenty-six".