1268179388 has 30 divisors (see below), whose sum is σ = 2589065136. Its totient is φ = 543501336.

The previous prime is 1268179373. The next prime is 1268179391. The reversal of 1268179388 is 8839718621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 56420 + ... + 75627.

Almost surely, 2^1268179388 is an apocalyptic number.

It is an amenable number.

1268179388 is an abundant number, since it is smaller than the sum of its proper divisors (1320885748).

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

1268179388 is an equidigital number, since it uses as much as digits as its factorization.

1268179388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132079 (or 132056 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 1268179388 is about 35611.5063989155. The cubic root of 1268179388 is about 1082.4144052420.

The spelling of 1268179388 in words is "one billion, two hundred sixty-eight million, one hundred seventy-nine thousand, three hundred eighty-eight".