2772221246 has 16 divisors (see below), whose sum is σ = 4404072384. Its totient is φ = 1304239104.

The previous prime is 2772221227. The next prime is 2772221269. The reversal of 2772221246 is 6421222772.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 167291 + ... + 183113.

It is an arithmetic number, because the mean of its divisors is an integer number (275254524).

Almost surely, 2^2772221246 is an apocalyptic number.

2772221246 is a deficient number, since it is larger than the sum of its proper divisors (1631851138).

2772221246 is a wasteful number, since it uses less digits than its factorization.

2772221246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20995.

The product of its digits is 37632, while the sum is 35.

The square root of 2772221246 is about 52651.8873925712. The cubic root of 2772221246 is about 1404.7831710748.

The spelling of 2772221246 in words is "two billion, seven hundred seventy-two million, two hundred twenty-one thousand, two hundred forty-six".