1067840 has 56 divisors (see below), whose sum is σ = 2633472. Its totient is φ = 412160.

The previous prime is 1067837. The next prime is 1067849. The reversal of 1067840 is 487601.

It is a super-2 number, since 2×1067840² = 2280564531200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067849) 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, 15005 + ... + 15075.

2^1067840 is an apocalyptic number.

1067840 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 1067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316736).

1067840 is an abundant number, since it is smaller than the sum of its proper divisors (1565632).

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

1067840 is an equidigital number, since it uses as much as digits as its factorization.

1067840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1067840 is about 1033.3634404216. The cubic root of 1067840 is about 102.2120412741.

The spelling of 1067840 in words is "one million, sixty-seven thousand, eight hundred forty".