2194294986 has 36 divisors (see below), whose sum is σ = 5148160758. Its totient is φ = 675166752.

The previous prime is 2194294981. The next prime is 2194295003. The reversal of 2194294986 is 6894924912.

It can be written as a sum of positive squares in 3 ways, for example, as 496442961 + 1697852025 = 22281^2 + 41205^2 .

It is not an unprimeable number, because it can be changed into a prime (2194294981) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 357625 + ... + 363708.

Almost surely, 2^2194294986 is an apocalyptic number.

2194294986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2194294986 is an abundant number, since it is smaller than the sum of its proper divisors (2953865772).

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

2194294986 is a wasteful number, since it uses less digits than its factorization.

2194294986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721367 (or 721351 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 2194294986 is about 46843.3024668415. The cubic root of 2194294986 is about 1299.4662475492.

The spelling of 2194294986 in words is "two billion, one hundred ninety-four million, two hundred ninety-four thousand, nine hundred eighty-six".