1268621234 has 8 divisors (see below), whose sum is σ = 1903133340. Its totient is φ = 634243456.

The previous prime is 1268621171. The next prime is 1268621267. The reversal of 1268621234 is 4321268621.

It can be written as a sum of positive squares in 2 ways, for example, as 1208605225 + 60016009 = 34765^2 + 7747^2 .

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 = 1268621194 and 1268621203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5159 + ... + 50634.

Almost surely, 2^1268621234 is an apocalyptic number.

1268621234 is a deficient number, since it is larger than the sum of its proper divisors (634512106).

1268621234 is a wasteful number, since it uses less digits than its factorization.

1268621234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67164.

The product of its digits is 27648, while the sum is 35.

The square root of 1268621234 is about 35617.7095557814. The cubic root of 1268621234 is about 1082.5400985383.

Adding to 1268621234 its reverse (4321268621), we get a palindrome (5589889855).

The spelling of 1268621234 in words is "one billion, two hundred sixty-eight million, six hundred twenty-one thousand, two hundred thirty-four".