1266242367 has 8 divisors (see below), whose sum is σ = 1818194224. Its totient is φ = 779226048.

The previous prime is 1266242363. The next prime is 1266242389. The reversal of 1266242367 is 7632426621.

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

It is not a de Polignac number, because 1266242367 - 2² = 1266242363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 32467753 = 1266242367 / (1 + 2 + 6 + 6 + 2 + 4 + 2 + 3 + 6 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266242363) by changing a digit.

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, 16233838 + ... + 16233915.

It is an arithmetic number, because the mean of its divisors is an integer number (227274278).

Almost surely, 2^1266242367 is an apocalyptic number.

1266242367 is a deficient number, since it is larger than the sum of its proper divisors (551951857).

1266242367 is a wasteful number, since it uses less digits than its factorization.

1266242367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32467769.

The product of its digits is 145152, while the sum is 39.

The square root of 1266242367 is about 35584.2994451205. The cubic root of 1266242367 is about 1081.8630300866.

Adding to 1266242367 its reverse (7632426621), we get a palindrome (8898668988).

The spelling of 1266242367 in words is "one billion, two hundred sixty-six million, two hundred forty-two thousand, three hundred sixty-seven".