1065983240 has 96 divisors (see below), whose sum is σ = 2815323480. Its totient is φ = 362170368.

The previous prime is 1065983227. The next prime is 1065983257. The reversal of 1065983240 is 423895601.

It is a happy number.

1065983240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 665743204 + 400240036 = 25802^2 + 20006^2 .

It is a super-2 number, since 2×1065983240² = 2272640535921795200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1065983194 and 1065983203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219074 + ... + 223886.

Almost surely, 2^1065983240 is an apocalyptic number.

1065983240 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 1065983240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407661740).

1065983240 is an abundant number, since it is smaller than the sum of its proper divisors (1749340240).

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

1065983240 is a wasteful number, since it uses less digits than its factorization.

1065983240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951 (or 4940 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1065983240 is about 32649.3987693495. The cubic root of 1065983240 is about 1021.5276481117.

The spelling of 1065983240 in words is "one billion, sixty-five million, nine hundred eighty-three thousand, two hundred forty".