1267636 has 12 divisors (see below), whose sum is σ = 2227680. Its totient is φ = 631160.

The previous prime is 1267633. The next prime is 1267649. The reversal of 1267636 is 6367621.

It is a junction number, because it is equal to n+sod(n) for n = 1267598 and 1267607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267633) 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, 735 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (185640).

2^1267636 is an apocalyptic number.

It is an amenable number.

1267636 is a deficient number, since it is larger than the sum of its proper divisors (960044).

1267636 is a wasteful number, since it uses less digits than its factorization.

1267636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1332 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 1267636 is about 1125.8934230201. The cubic root of 1267636 is about 108.2259785943.

The spelling of 1267636 in words is "one million, two hundred sixty-seven thousand, six hundred thirty-six".