1074240 has 84 divisors (see below), whose sum is σ = 3704844. Its totient is φ = 285696.

The previous prime is 1074223. The next prime is 1074251. The reversal of 1074240 is 424701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 589824 = 696^2 + 768^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2694 + ... + 3066.

2^1074240 is an apocalyptic number.

1074240 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 1074240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852422).

1074240 is an abundant number, since it is smaller than the sum of its proper divisors (2630604).

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

1074240 is a wasteful number, since it uses less digits than its factorization.

1074240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1074240 is about 1036.4554983211. The cubic root of 1074240 is about 102.4158341400.

Adding to 1074240 its reverse (424701), we get a palindrome (1498941).

The spelling of 1074240 in words is "one million, seventy-four thousand, two hundred forty".