196564438 has 32 divisors (see below), whose sum is σ = 365105664. Its totient is φ = 77438592.

The previous prime is 196564429. The next prime is 196564441. The reversal of 196564438 is 834465691.

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, 631 + ... + 19837.

It is an arithmetic number, because the mean of its divisors is an integer number (11409552).

Almost surely, 2^196564438 is an apocalyptic number.

196564438 is a deficient number, since it is larger than the sum of its proper divisors (168541226).

196564438 is a wasteful number, since it uses less digits than its factorization.

196564438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19276.

The product of its digits is 622080, while the sum is 46.

The square root of 196564438 is about 14020.1440078196. The cubic root of 196564438 is about 581.4356408921.

The spelling of 196564438 in words is "one hundred ninety-six million, five hundred sixty-four thousand, four hundred thirty-eight".