196245840 has 160 divisors (see below), whose sum is σ = 699955200. Its totient is φ = 44554752.

The previous prime is 196245839. The next prime is 196245883. The reversal of 196245840 is 48542691.

196245840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 334027 + ... + 334613.

It is an arithmetic number, because the mean of its divisors is an integer number (4374720).

Almost surely, 2^196245840 is an apocalyptic number.

196245840 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 196245840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349977600).

196245840 is an abundant number, since it is smaller than the sum of its proper divisors (503709360).

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

196245840 is a wasteful number, since it uses less digits than its factorization.

196245840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 196245840 is about 14008.7772485681. Note that the first 3 decimals coincide. The cubic root of 196245840 is about 581.1213344528.

The spelling of 196245840 in words is "one hundred ninety-six million, two hundred forty-five thousand, eight hundred forty".