196401844 has 12 divisors (see below), whose sum is σ = 344690500. Its totient is φ = 97918848.

The previous prime is 196401839. The next prime is 196401851. The reversal of 196401844 is 448104691.

It can be written as a sum of positive squares in 2 ways, for example, as 180096400 + 16305444 = 13420^2 + 4038^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68949 + ... + 71740.

Almost surely, 2^196401844 is an apocalyptic number.

It is an amenable number.

196401844 is a deficient number, since it is larger than the sum of its proper divisors (148288656).

196401844 is a wasteful number, since it uses less digits than its factorization.

196401844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141042 (or 141040 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 196401844 is about 14014.3442229738. The cubic root of 196401844 is about 581.2752795264.

The spelling of 196401844 in words is "one hundred ninety-six million, four hundred one thousand, eight hundred forty-four".