1267040 has 24 divisors (see below), whose sum is σ = 2993760. Its totient is φ = 506752.

The previous prime is 1267009. The next prime is 1267043. The reversal of 1267040 is 407621.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267043) 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, 3800 + ... + 4119.

It is an arithmetic number, because the mean of its divisors is an integer number (124740).

2^1267040 is an apocalyptic number.

1267040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1267040 is an abundant number, since it is smaller than the sum of its proper divisors (1726720).

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

1267040 is an equidigital number, since it uses as much as digits as its factorization.

1267040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934 (or 7926 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1267040 is about 1125.6287132088. The cubic root of 1267040 is about 108.2090145250.

The spelling of 1267040 in words is "one million, two hundred sixty-seven thousand, forty".