2075694394 has 4 divisors (see below), whose sum is σ = 3113541594. Its totient is φ = 1037847196.

The previous prime is 2075694389. The next prime is 2075694403. The reversal of 2075694394 is 4934965702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2059798225 + 15896169 = 45385^2 + 3987^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 518923597 + ... + 518923600.

Almost surely, 2^2075694394 is an apocalyptic number.

2075694394 is a deficient number, since it is larger than the sum of its proper divisors (1037847200).

2075694394 is a wasteful number, since it uses less digits than its factorization.

2075694394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037847199.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 2075694394 is about 45559.7892225151. The cubic root of 2075694394 is about 1275.6194645077.

The spelling of 2075694394 in words is "two billion, seventy-five million, six hundred ninety-four thousand, three hundred ninety-four".