2193700738 has 4 divisors (see below), whose sum is σ = 3290551110. Its totient is φ = 1096850368.

The previous prime is 2193700721. The next prime is 2193700741. The reversal of 2193700738 is 8370073912.

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., 1611781609 + 581919129 = 40147^2 + 24123^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2193700738.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548425183 + ... + 548425186.

Almost surely, 2^2193700738 is an apocalyptic number.

2193700738 is a deficient number, since it is larger than the sum of its proper divisors (1096850372).

2193700738 is a wasteful number, since it uses less digits than its factorization.

2193700738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096850371.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 2193700738 is about 46836.9591028282. The cubic root of 2193700738 is about 1299.3489319737.

The spelling of 2193700738 in words is "two billion, one hundred ninety-three million, seven hundred thousand, seven hundred thirty-eight".