196590940 has 108 divisors (see below), whose sum is σ = 520465176. Its totient is φ = 62165376.

The previous prime is 196590937. The next prime is 196590949. The reversal of 196590940 is 49095691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196590949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 165027 + ... + 166213.

It is an arithmetic number, because the mean of its divisors is an integer number (4819122).

Almost surely, 2^196590940 is an apocalyptic number.

196590940 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 196590940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260232588).

196590940 is an abundant number, since it is smaller than the sum of its proper divisors (323874236).

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

196590940 is a wasteful number, since it uses less digits than its factorization.

196590940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 196590940 is about 14021.0891160423. The cubic root of 196590940 is about 581.4617706015.

The spelling of 196590940 in words is "one hundred ninety-six million, five hundred ninety thousand, nine hundred forty".