1065240 has 96 divisors (see below), whose sum is σ = 3790800. Its totient is φ = 257280.

The previous prime is 1065217. The next prime is 1065263. The reversal of 1065240 is 425601.

Added to its reverse (425601) it gives a square (1490841 = 1221²).

It is a happy number.

1065240 is a `hidden beast` number, since 10 + 652 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1065217) and next prime (1065263).

It is a super-2 number, since 2×1065240² = 2269472515200, which contains 22 as substring.

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 3826 + ... + 4094.

2^1065240 is an apocalyptic number.

1065240 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 1065240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895400).

1065240 is an abundant number, since it is smaller than the sum of its proper divisors (2725560).

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

1065240 is a wasteful number, since it uses less digits than its factorization.

1065240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1065240 is about 1032.1046458572. The cubic root of 1065240 is about 102.1290178232.

Adding to 1065240 its reverse (425601), we get a square (1490841 = 1221²).

The spelling of 1065240 in words is "one million, sixty-five thousand, two hundred forty".