1266504 has 32 divisors (see below), whose sum is σ = 3201120. Its totient is φ = 417536.

The previous prime is 1266493. The next prime is 1266511. The reversal of 1266504 is 4056621.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (100035).

2^1266504 is an apocalyptic number.

It is an amenable number.

1266504 is an abundant number, since it is smaller than the sum of its proper divisors (1934616).

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

1266504 is a wasteful number, since it uses less digits than its factorization.

1266504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1266504 is about 1125.3905988589. The cubic root of 1266504 is about 108.1937537038.

It can be divided in two parts, 1266 and 504, that added together give a triangular number (1770 = T₅₉).

The spelling of 1266504 in words is "one million, two hundred sixty-six thousand, five hundred four".