7238812738 has 8 divisors (see below), whose sum is σ = 11496937932. Its totient is φ = 3406500096.

The previous prime is 7238812729. The next prime is 7238812741. The reversal of 7238812738 is 8372188327.

It can be written as a sum of positive squares in 2 ways, for example, as 7219391089 + 19421649 = 84967^2 + 4407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7238812691 and 7238812700.

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 in 3 ways as a sum of consecutive naturals, for example, 106453095 + ... + 106453162.

Almost surely, 2^7238812738 is an apocalyptic number.

7238812738 is a deficient number, since it is larger than the sum of its proper divisors (4258125194).

7238812738 is a wasteful number, since it uses less digits than its factorization.

7238812738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212906276.

The product of its digits is 903168, while the sum is 49.

The square root of 7238812738 is about 85081.2126030183. The cubic root of 7238812738 is about 1934.4423018257.

The spelling of 7238812738 in words is "seven billion, two hundred thirty-eight million, eight hundred twelve thousand, seven hundred thirty-eight".