196251720 has 128 divisors (see below), whose sum is σ = 677376000. Its totient is φ = 44557056.

The previous prime is 196251677. The next prime is 196251761. The reversal of 196251720 is 27152691.

196251720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139581 + ... + 140979.

It is an arithmetic number, because the mean of its divisors is an integer number (5292000).

Almost surely, 2^196251720 is an apocalyptic number.

196251720 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 196251720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338688000).

196251720 is an abundant number, since it is smaller than the sum of its proper divisors (481124280).

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

196251720 is a wasteful number, since it uses less digits than its factorization.

196251720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 196251720 is about 14008.9871154199. The cubic root of 196251720 is about 581.1271383284.

The spelling of 196251720 in words is "one hundred ninety-six million, two hundred fifty-one thousand, seven hundred twenty".