3243137738 has 4 divisors (see below), whose sum is σ = 4864706610. Its totient is φ = 1621568868.

The previous prime is 3243137707. The next prime is 3243137743. The reversal of 3243137738 is 8377313423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8377313423 = 383 ⋅21872881.

It can be written as a sum of positive squares in only one way, i.e., 1680754009 + 1562383729 = 40997^2 + 39527^2 .

It is a super-3 number, since 3×3243137738³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3243137695 and 3243137704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810784433 + ... + 810784436.

Almost surely, 2^3243137738 is an apocalyptic number.

3243137738 is a deficient number, since it is larger than the sum of its proper divisors (1621568872).

3243137738 is a wasteful number, since it uses less digits than its factorization.

3243137738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621568871.

The product of its digits is 254016, while the sum is 41.

The square root of 3243137738 is about 56948.5534320232. The cubic root of 3243137738 is about 1480.2047650091.

The spelling of 3243137738 in words is "three billion, two hundred forty-three million, one hundred thirty-seven thousand, seven hundred thirty-eight".