2065999404 has 72 divisors (see below), whose sum is σ = 5593808640. Its totient is φ = 581369184.

The previous prime is 2065999387. The next prime is 2065999421. The reversal of 2065999404 is 4049995602.

It is an interprime number because it is at equal distance from previous prime (2065999387) and next prime (2065999421).

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, 374337 + ... + 379815.

Almost surely, 2^2065999404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065999404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2796904320).

2065999404 is an abundant number, since it is smaller than the sum of its proper divisors (3527809236).

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

2065999404 is a wasteful number, since it uses less digits than its factorization.

2065999404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5627 (or 5558 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 2065999404 is about 45453.2661532700. The cubic root of 2065999404 is about 1273.6303434116.

The spelling of 2065999404 in words is "two billion, sixty-five million, nine hundred ninety-nine thousand, four hundred four".