1269040 has 40 divisors (see below), whose sum is σ = 3057840. Its totient is φ = 489216.

The previous prime is 1269017. The next prime is 1269041. The reversal of 1269040 is 409621.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1269040² = 3220925043200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269041) 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, 2047 + ... + 2593.

It is an arithmetic number, because the mean of its divisors is an integer number (76446).

2^1269040 is an apocalyptic number.

1269040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1269040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528920).

1269040 is an abundant number, since it is smaller than the sum of its proper divisors (1788800).

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

1269040 is a wasteful number, since it uses less digits than its factorization.

1269040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1269040 is about 1126.5167553126. The cubic root of 1269040 is about 108.2659199260.

The spelling of 1269040 in words is "one million, two hundred sixty-nine thousand, forty".