1073840 has 40 divisors (see below), whose sum is σ = 2583168. Its totient is φ = 414720.

The previous prime is 1073837. The next prime is 1073857. The reversal of 1073840 is 483701.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2264 + ... + 2696.

2^1073840 is an apocalyptic number.

1073840 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 1073840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291584).

1073840 is an abundant number, since it is smaller than the sum of its proper divisors (1509328).

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

1073840 is a wasteful number, since it uses less digits than its factorization.

1073840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1073840 is about 1036.2625150028. The cubic root of 1073840 is about 102.4031208359.

The spelling of 1073840 in words is "one million, seventy-three thousand, eight hundred forty".