1263338432 has 28 divisors (see below), whose sum is σ = 2510073720. Its totient is φ = 630878976.

The previous prime is 1263338393. The next prime is 1263338437. The reversal of 1263338432 is 2348333621.

It is a junction number, because it is equal to n+sod(n) for n = 1263338392 and 1263338401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263338437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40994 + ... + 64862.

It is an arithmetic number, because the mean of its divisors is an integer number (89645490).

Almost surely, 2^1263338432 is an apocalyptic number.

It is an amenable number.

1263338432 is a deficient number, since it is larger than the sum of its proper divisors (1246735288).

1263338432 is an equidigital number, since it uses as much as digits as its factorization.

1263338432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24708 (or 24698 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 1263338432 is about 35543.4724246239. The cubic root of 1263338432 is about 1081.0353674144.

The spelling of 1263338432 in words is "one billion, two hundred sixty-three million, three hundred thirty-eight thousand, four hundred thirty-two".