196390590 has 32 divisors (see below), whose sum is σ = 514187136. Its totient is φ = 47609760.

The previous prime is 196390577. The next prime is 196390637. The reversal of 196390590 is 95093691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297232 + ... + 297891.

It is an arithmetic number, because the mean of its divisors is an integer number (16068348).

Almost surely, 2^196390590 is an apocalyptic number.

196390590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196390590 is an abundant number, since it is smaller than the sum of its proper divisors (317796546).

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

196390590 is a wasteful number, since it uses less digits than its factorization.

196390590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595144.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 196390590 is about 14013.9427000398. The cubic root of 196390590 is about 581.2641767845.

The spelling of 196390590 in words is "one hundred ninety-six million, three hundred ninety thousand, five hundred ninety".