1240065570 has 16 divisors (see below), whose sum is σ = 2976157440. Its totient is φ = 330684144.

The previous prime is 1240065509. The next prime is 1240065583. The reversal of 1240065570 is 755600421.

1240065570 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 41335519 = 1240065570 / (1 + 2 + 4 + 0 + 0 + 6 + 5 + 5 + 7 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20667730 + ... + 20667789.

It is an arithmetic number, because the mean of its divisors is an integer number (186009840).

Almost surely, 2^1240065570 is an apocalyptic number.

1240065570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240065570 is an abundant number, since it is smaller than the sum of its proper divisors (1736091870).

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

1240065570 is a wasteful number, since it uses less digits than its factorization.

1240065570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41335529.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1240065570 is about 35214.5647424471. The cubic root of 1240065570 is about 1074.3560072901.

Adding to 1240065570 its reverse (755600421), we get a palindrome (1995665991).

The spelling of 1240065570 in words is "one billion, two hundred forty million, sixty-five thousand, five hundred seventy".