1979236194 has 64 divisors (see below), whose sum is σ = 4498623360. Its totient is φ = 575493120.

The previous prime is 1979236183. The next prime is 1979236211. The reversal of 1979236194 is 4916329791.

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, 681754 + ... + 684650.

It is an arithmetic number, because the mean of its divisors is an integer number (70290990).

Almost surely, 2^1979236194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979236194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2249311680).

1979236194 is an abundant number, since it is smaller than the sum of its proper divisors (2519387166).

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

1979236194 is a wasteful number, since it uses less digits than its factorization.

1979236194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395.

The product of its digits is 734832, while the sum is 51.

The square root of 1979236194 is about 44488.6074630348. The cubic root of 1979236194 is about 1255.5457474154.

The spelling of 1979236194 in words is "one billion, nine hundred seventy-nine million, two hundred thirty-six thousand, one hundred ninety-four".