2194662738 has 16 divisors (see below), whose sum is σ = 4390151040. Its totient is φ = 731416656.

The previous prime is 2194662721. The next prime is 2194662749. The reversal of 2194662738 is 8372664912.

2194662738 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3348 + ... + 66336.

It is an arithmetic number, because the mean of its divisors is an integer number (274384440).

Almost surely, 2^2194662738 is an apocalyptic number.

2194662738 is an abundant number, since it is smaller than the sum of its proper divisors (2195488302).

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

2194662738 is a wasteful number, since it uses less digits than its factorization.

2194662738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68801.

The product of its digits is 870912, while the sum is 48.

The square root of 2194662738 is about 46847.2276447604. The cubic root of 2194662738 is about 1299.5388380046.

The spelling of 2194662738 in words is "two billion, one hundred ninety-four million, six hundred sixty-two thousand, seven hundred thirty-eight".