196812720 has 320 divisors, whose sum is σ = 751618560. Its totient is φ = 47029248.

The previous prime is 196812667. The next prime is 196812727. The reversal of 196812720 is 27218691.

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

It is not an unprimeable number, because it can be changed into a prime (196812727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1207359 + ... + 1207521.

It is an arithmetic number, because the mean of its divisors is an integer number (2348808).

Almost surely, 2^196812720 is an apocalyptic number.

196812720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196812720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375809280).

196812720 is an abundant number, since it is smaller than the sum of its proper divisors (554805840).

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

196812720 is a wasteful number, since it uses less digits than its factorization.

196812720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 196812720 is about 14028.9956875038. The cubic root of 196812720 is about 581.6803431166.

The spelling of 196812720 in words is "one hundred ninety-six million, eight hundred twelve thousand, seven hundred twenty".