1263375936 has 63 divisors (see below), whose sum is σ = 3623685793. Its totient is φ = 420840960.

The previous prime is 1263375929. The next prime is 1263375959. The reversal of 1263375936 is 6395733621.

The square root of 1263375936 is 35544.

It is a perfect power (a square), and thus also a powerful number.

1263375936 is a `hidden beast` number, since 1 + 2 + 633 + 7 + 5 + 9 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 540841536 + 722534400 = 23256^2 + 26880^2 .

It is a super-2 number, since 2×1263375936² = 3192237511327752192, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1263375891 and 1263375900.

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 8 ways as a sum of consecutive naturals, for example, 852316 + ... + 853796.

Almost surely, 2^1263375936 is an apocalyptic number.

1263375936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1263375936 is the 35544-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263375936

1263375936 is an abundant number, since it is smaller than the sum of its proper divisors (2360309857).

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

1263375936 is an frugal number, since it uses more digits than its factorization.

1263375936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980 (or 1486 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The cubic root of 1263375936 is about 1081.0460646665.

The spelling of 1263375936 in words is "one billion, two hundred sixty-three million, three hundred seventy-five thousand, nine hundred thirty-six".