1266308 has 6 divisors (see below), whose sum is σ = 2216046. Its totient is φ = 633152.

The previous prime is 1266301. The next prime is 1266323. The reversal of 1266308 is 8036621.

It can be written as a sum of positive squares in only one way, i.e., 1249924 + 16384 = 1118^2 + 128^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158285 + ... + 158292.

It is an arithmetic number, because the mean of its divisors is an integer number (369341).

2^1266308 is an apocalyptic number.

1266308 is the 602-nd centered heptagonal number.

It is an amenable number.

1266308 is a deficient number, since it is larger than the sum of its proper divisors (949738).

1266308 is a wasteful number, since it uses less digits than its factorization.

1266308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316581 (or 316579 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1266308 is about 1125.3035146128. The cubic root of 1266308 is about 108.1881721792.

The spelling of 1266308 in words is "one million, two hundred sixty-six thousand, three hundred eight".