197041026 has 64 divisors (see below), whose sum is σ = 486662400. Its totient is φ = 51791616.

The previous prime is 197041003. The next prime is 197041043. The reversal of 197041026 is 620140791.

It is a happy number.

197041026 is a nontrivial binomial coefficient, being equal to C(19852, 2).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 197040984 and 197041002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277560 + ... + 278268.

It is an arithmetic number, because the mean of its divisors is an integer number (7604100).

Almost surely, 2^197041026 is an apocalyptic number.

197041026 is the 19851-st triangular number and also the 9926-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197041026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243331200).

197041026 is an abundant number, since it is smaller than the sum of its proper divisors (289621374).

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

197041026 is a wasteful number, since it uses less digits than its factorization.

197041026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 197041026 is about 14037.1302622723. The cubic root of 197041026 is about 581.9051757985.

The spelling of 197041026 in words is "one hundred ninety-seven million, forty-one thousand, twenty-six".