196822540 has 12 divisors (see below), whose sum is σ = 413327376. Its totient is φ = 78729008.

The previous prime is 196822529. The next prime is 196822547. The reversal of 196822540 is 45228691.

196822540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×196822540² = 77478224504103200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196822540.

It is not an unprimeable number, because it can be changed into a prime (196822547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4920544 + ... + 4920583.

It is an arithmetic number, because the mean of its divisors is an integer number (34443948).

Almost surely, 2^196822540 is an apocalyptic number.

196822540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196822540 is an abundant number, since it is smaller than the sum of its proper divisors (216504836).

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

196822540 is a wasteful number, since it uses less digits than its factorization.

196822540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9841136 (or 9841134 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 196822540 is about 14029.3456725537. The cubic root of 196822540 is about 581.6900172982.

It can be divided in two parts, 19682 and 2540, that added together give a palindrome (22222).

The spelling of 196822540 in words is "one hundred ninety-six million, eight hundred twenty-two thousand, five hundred forty".