1240323065 has 32 divisors (see below), whose sum is σ = 1567399680. Its totient is φ = 941241600.

The previous prime is 1240323023. The next prime is 1240323121. The reversal of 1240323065 is 5603230421.

It is not a de Polignac number, because 1240323065 - 2¹² = 1240318969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1477916 + ... + 1478754.

It is an arithmetic number, because the mean of its divisors is an integer number (48981240).

Almost surely, 2^1240323065 is an apocalyptic number.

It is an amenable number.

1240323065 is a deficient number, since it is larger than the sum of its proper divisors (327076615).

1240323065 is a wasteful number, since it uses less digits than its factorization.

1240323065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1240323065 is about 35218.2206393225. The cubic root of 1240323065 is about 1074.4303641524.

Adding to 1240323065 its reverse (5603230421), we get a palindrome (6843553486).

The spelling of 1240323065 in words is "one billion, two hundred forty million, three hundred twenty-three thousand, sixty-five".