196968820 has 36 divisors (see below), whose sum is σ = 436566564. Its totient is φ = 74638080.

The previous prime is 196968791. The next prime is 196968913. The reversal of 196968820 is 28869691.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 112402404 + 84566416 = 10602^2 + 9196^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6421 + ... + 20860.

It is an arithmetic number, because the mean of its divisors is an integer number (12126849).

Almost surely, 2^196968820 is an apocalyptic number.

196968820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196968820 is an abundant number, since it is smaller than the sum of its proper divisors (239597744).

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

196968820 is a wasteful number, since it uses less digits than its factorization.

196968820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27328 (or 27307 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 196968820 is about 14034.5580621550. The cubic root of 196968820 is about 581.8340870859.

The spelling of 196968820 in words is "one hundred ninety-six million, nine hundred sixty-eight thousand, eight hundred twenty".