1268906492 has 24 divisors (see below), whose sum is σ = 2538584160. Its totient is φ = 543651840.

The previous prime is 1268906489. The next prime is 1268906557. The reversal of 1268906492 is 2946098621.

It is a super-2 number, since 2×1268906492² = 3220247370879492128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148184 + ... + 156512.

It is an arithmetic number, because the mean of its divisors is an integer number (105774340).

Almost surely, 2^1268906492 is an apocalyptic number.

It is an amenable number.

1268906492 is an abundant number, since it is smaller than the sum of its proper divisors (1269677668).

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

1268906492 is a wasteful number, since it uses less digits than its factorization.

1268906492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13781 (or 13779 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 1268906492 is about 35621.7137712379. The cubic root of 1268906492 is about 1082.6212312600.

The spelling of 1268906492 in words is "one billion, two hundred sixty-eight million, nine hundred six thousand, four hundred ninety-two".