196890580 has 24 divisors (see below), whose sum is σ = 431448192. Its totient is φ = 75331872.

The previous prime is 196890523. The next prime is 196890607. The reversal of 196890580 is 85098691.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 196890580.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 213552 + ... + 214471.

It is an arithmetic number, because the mean of its divisors is an integer number (17977008).

Almost surely, 2^196890580 is an apocalyptic number.

196890580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196890580 is an abundant number, since it is smaller than the sum of its proper divisors (234557612).

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

196890580 is a wasteful number, since it uses less digits than its factorization.

196890580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428055 (or 428053 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 196890580 is about 14031.7703801053. The cubic root of 196890580 is about 581.7570381266.

The spelling of 196890580 in words is "one hundred ninety-six million, eight hundred ninety thousand, five hundred eighty".