2065778 has 32 divisors (see below), whose sum is σ = 3773952.
Its totient is φ = 835200.
The previous prime is 2065769. The next prime is 2065799. The reversal of 2065778 is 8775602.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8750 + ... + 8982.
It is an arithmetic number, because the mean of its divisors is an integer number (117936).
22065778 is an apocalyptic number.
2065778 is a deficient number, since it is larger than the sum of its proper divisors (1708174).
2065778 is a wasteful number, since it uses less digits than its factorization.
2065778 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 290.
The product of its (nonzero) digits is 23520, while the sum is 35.
The square root of 2065778 is about 1437.2814616490.
The cubic root of 2065778 is about 127.3584845347.
The spelling of 2065778 in words is "two million, sixty-five thousand, seven hundred seventy-eight".