2658212338 has 4 divisors (see below), whose sum is σ = 3987318510. Its totient is φ = 1329106168.

The previous prime is 2658212317. The next prime is 2658212341. The reversal of 2658212338 is 8332128562.

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., 2249889489 + 408322849 = 47433^2 + 20207^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2658212338.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664553083 + ... + 664553086.

Almost surely, 2^2658212338 is an apocalyptic number.

2658212338 is a deficient number, since it is larger than the sum of its proper divisors (1329106172).

2658212338 is a wasteful number, since it uses less digits than its factorization.

2658212338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329106171.

The product of its digits is 138240, while the sum is 40.

The square root of 2658212338 is about 51557.8542804101. The cubic root of 2658212338 is about 1385.2555212412.

The spelling of 2658212338 in words is "two billion, six hundred fifty-eight million, two hundred twelve thousand, three hundred thirty-eight".