1263441232 has 20 divisors (see below), whose sum is σ = 2455798176. Its totient is φ = 629686880.

The previous prime is 1263441209. The next prime is 1263441247. The reversal of 1263441232 is 2321443621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1263441232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121978 + ... + 131929.

Almost surely, 2^1263441232 is an apocalyptic number.

It is an amenable number.

1263441232 is a deficient number, since it is larger than the sum of its proper divisors (1192356944).

1263441232 is a wasteful number, since it uses less digits than its factorization.

1263441232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254226 (or 254220 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 1263441232 is about 35544.9185116523. The cubic root of 1263441232 is about 1081.0646885155.

Adding to 1263441232 its reverse (2321443621), we get a palindrome (3584884853).

The spelling of 1263441232 in words is "one billion, two hundred sixty-three million, four hundred forty-one thousand, two hundred thirty-two".