1266142304 has 24 divisors (see below), whose sum is σ = 2848820688. Its totient is φ = 542632320.

The previous prime is 1266142277. The next prime is 1266142309. The reversal of 1266142304 is 4032416621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266142309) 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, 2825987 + ... + 2826434.

It is an arithmetic number, because the mean of its divisors is an integer number (118700862).

Almost surely, 2^1266142304 is an apocalyptic number.

1266142304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1266142304 is an abundant number, since it is smaller than the sum of its proper divisors (1582678384).

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

1266142304 is an equidigital number, since it uses as much as digits as its factorization.

1266142304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5652438 (or 5652430 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1266142304 is about 35582.8934180457. The cubic root of 1266142304 is about 1081.8345317740.

Adding to 1266142304 its reverse (4032416621), we get a palindrome (5298558925).

The spelling of 1266142304 in words is "one billion, two hundred sixty-six million, one hundred forty-two thousand, three hundred four".