2065690438 has 8 divisors (see below), whose sum is σ = 3541183632. Its totient is φ = 885295896.

The previous prime is 2065690381. The next prime is 2065690453. The reversal of 2065690438 is 8340965602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2065690394 and 2065690403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73774645 + ... + 73774672.

It is an arithmetic number, because the mean of its divisors is an integer number (442647954).

Almost surely, 2^2065690438 is an apocalyptic number.

2065690438 is a deficient number, since it is larger than the sum of its proper divisors (1475493194).

2065690438 is a wasteful number, since it uses less digits than its factorization.

2065690438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147549326.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 2065690438 is about 45449.8673045368. The cubic root of 2065690438 is about 1273.5668506391.

The spelling of 2065690438 in words is "two billion, sixty-five million, six hundred ninety thousand, four hundred thirty-eight".