196570990 has 64 divisors (see below), whose sum is σ = 456399360. Its totient is φ = 59149440.

The previous prime is 196570987. The next prime is 196571009. The reversal of 196570990 is 99075691.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 196570990.

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, 17929 + ... + 26731.

It is an arithmetic number, because the mean of its divisors is an integer number (7131240).

Almost surely, 2^196570990 is an apocalyptic number.

196570990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196570990 is an abundant number, since it is smaller than the sum of its proper divisors (259828370).

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

196570990 is a wasteful number, since it uses less digits than its factorization.

196570990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8857.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 196570990 is about 14020.3776696635. The cubic root of 196570990 is about 581.4421010705.

The spelling of 196570990 in words is "one hundred ninety-six million, five hundred seventy thousand, nine hundred ninety".