1268189074 has 8 divisors (see below), whose sum is σ = 1903855500. Its totient is φ = 633570576.

The previous prime is 1268189071. The next prime is 1268189089. The reversal of 1268189074 is 4709818621.

It can be written as a sum of positive squares in 2 ways, for example, as 1267858449 + 330625 = 35607^2 + 575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1268189071) 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, 258949 + ... + 263800.

Almost surely, 2^1268189074 is an apocalyptic number.

1268189074 is a deficient number, since it is larger than the sum of its proper divisors (635666426).

1268189074 is a wasteful number, since it uses less digits than its factorization.

1268189074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523964.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 1268189074 is about 35611.6423940261. The cubic root of 1268189074 is about 1082.4171609613.

The spelling of 1268189074 in words is "one billion, two hundred sixty-eight million, one hundred eighty-nine thousand, seventy-four".