2065640424 has 32 divisors (see below), whose sum is σ = 5172645120. Its totient is φ = 687407616.

The previous prime is 2065640389. The next prime is 2065640429. The reversal of 2065640424 is 4240465602.

It is a super-2 number, since 2×2065640424² = 8533740722525799552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2065640429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56329 + ... + 85464.

It is an arithmetic number, because the mean of its divisors is an integer number (161645160).

Almost surely, 2^2065640424 is an apocalyptic number.

2065640424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2065640424 is an abundant number, since it is smaller than the sum of its proper divisors (3107004696).

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

2065640424 is a wasteful number, since it uses less digits than its factorization.

2065640424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142409 (or 142405 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 2065640424 is about 45449.3170905790. The cubic root of 2065640424 is about 1273.5565721248.

The spelling of 2065640424 in words is "two billion, sixty-five million, six hundred forty thousand, four hundred twenty-four".