2194478814 has 32 divisors (see below), whose sum is σ = 4793904000. Its totient is φ = 664167200.

The previous prime is 2194478791. The next prime is 2194478849. The reversal of 2194478814 is 4188744912.

2194478814 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 33937 + ... + 74435.

It is an arithmetic number, because the mean of its divisors is an integer number (149809500).

Almost surely, 2^2194478814 is an apocalyptic number.

2194478814 is an abundant number, since it is smaller than the sum of its proper divisors (2599425186).

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

2194478814 is a wasteful number, since it uses less digits than its factorization.

2194478814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41336.

The product of its digits is 516096, while the sum is 48.

The square root of 2194478814 is about 46845.2645845874. The cubic root of 2194478814 is about 1299.5025343160.

The spelling of 2194478814 in words is "two billion, one hundred ninety-four million, four hundred seventy-eight thousand, eight hundred fourteen".