2805690722 has 4 divisors (see below), whose sum is σ = 4208536086. Its totient is φ = 1402845360.

The previous prime is 2805690647. The next prime is 2805690739. The reversal of 2805690722 is 2270965082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1652341201 + 1153349521 = 40649^2 + 33961^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2805690722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701422679 + ... + 701422682.

Almost surely, 2^2805690722 is an apocalyptic number.

2805690722 is a deficient number, since it is larger than the sum of its proper divisors (1402845364).

2805690722 is a wasteful number, since it uses less digits than its factorization.

2805690722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402845363.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 2805690722 is about 52968.7711958660. The cubic root of 2805690722 is about 1410.4139625866.

The spelling of 2805690722 in words is "two billion, eight hundred five million, six hundred ninety thousand, seven hundred twenty-two".