1263625368 has 32 divisors (see below), whose sum is σ = 3344891760. Its totient is φ = 396431360.

The previous prime is 1263625357. The next prime is 1263625393. The reversal of 1263625368 is 8635263621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548153 + ... + 1548968.

Almost surely, 2^1263625368 is an apocalyptic number.

It is an amenable number.

1263625368 is an abundant number, since it is smaller than the sum of its proper divisors (2081266392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1263625368 is a wasteful number, since it uses less digits than its factorization.

1263625368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097147 (or 3097143 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 1263625368 is about 35547.5086046828. The cubic root of 1263625368 is about 1081.1172046787.

Adding to 1263625368 its reverse (8635263621), we get a palindrome (9898888989).

The spelling of 1263625368 in words is "one billion, two hundred sixty-three million, six hundred twenty-five thousand, three hundred sixty-eight".