1073440 has 24 divisors (see below), whose sum is σ = 2536380. Its totient is φ = 429312.

The previous prime is 1073411. The next prime is 1073441. The reversal of 1073440 is 443701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1073296 + 144 = 1036^2 + 12^2 .

It is not an unprimeable number, because it can be changed into a prime (1073441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3195 + ... + 3514.

2^1073440 is an apocalyptic number.

1073440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1073440 is an abundant number, since it is smaller than the sum of its proper divisors (1462940).

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

1073440 is an equidigital number, since it uses as much as digits as its factorization.

1073440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6724 (or 6716 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1073440 is about 1036.0694957386. The cubic root of 1073440 is about 102.3904043743.

The spelling of 1073440 in words is "one million, seventy-three thousand, four hundred forty".