1268655232 has 64 divisors (see below), whose sum is σ = 2865139200. Its totient is φ = 554701824.

The previous prime is 1268655211. The next prime is 1268655263. The reversal of 1268655232 is 2325568621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11553 + ... + 51679.

It is an arithmetic number, because the mean of its divisors is an integer number (44767800).

Almost surely, 2^1268655232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268655232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432569600).

1268655232 is an abundant number, since it is smaller than the sum of its proper divisors (1596483968).

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

1268655232 is a wasteful number, since it uses less digits than its factorization.

1268655232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40173 (or 40161 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 1268655232 is about 35618.1868151651. The cubic root of 1268655232 is about 1082.5497688450.

The spelling of 1268655232 in words is "one billion, two hundred sixty-eight million, six hundred fifty-five thousand, two hundred thirty-two".