1267634 has 16 divisors (see below), whose sum is σ = 1969920. Its totient is φ = 611520.

The previous prime is 1267633. The next prime is 1267649. The reversal of 1267634 is 4367621.

It is a junction number, because it is equal to n+sod(n) for n = 1267597 and 1267606.

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 7 ways as a sum of consecutive naturals, for example, 11162 + ... + 11274.

It is an arithmetic number, because the mean of its divisors is an integer number (123120).

2^1267634 is an apocalyptic number.

1267634 is a deficient number, since it is larger than the sum of its proper divisors (702286).

1267634 is a wasteful number, since it uses less digits than its factorization.

1267634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265.

The product of its digits is 6048, while the sum is 29.

The square root of 1267634 is about 1125.8925348363. The cubic root of 1267634 is about 108.2259216768.

It can be divided in two parts, 1267 and 634, that multiplied together give a triangular number (803278 = T₁₂₆₇).

The spelling of 1267634 in words is "one million, two hundred sixty-seven thousand, six hundred thirty-four".