1268756052 has 12 divisors (see below), whose sum is σ = 2960430816. Its totient is φ = 422918680.

The previous prime is 1268756051. The next prime is 1268756063. The reversal of 1268756052 is 2506578621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1268755995 and 1268756013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268756051) 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, 52864824 + ... + 52864847.

It is an arithmetic number, because the mean of its divisors is an integer number (246702568).

Almost surely, 2^1268756052 is an apocalyptic number.

1268756052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1268756052 is an abundant number, since it is smaller than the sum of its proper divisors (1691674764).

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

1268756052 is a wasteful number, since it uses less digits than its factorization.

1268756052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105729678 (or 105729676 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 1268756052 is about 35619.6020752619. The cubic root of 1268756052 is about 1082.5784448199.

The spelling of 1268756052 in words is "one billion, two hundred sixty-eight million, seven hundred fifty-six thousand, fifty-two".