2228920664 has 16 divisors (see below), whose sum is σ = 4206905520. Its totient is φ = 1107079200.

The previous prime is 2228920649. The next prime is 2228920669. The reversal of 2228920664 is 4660298222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228920669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921359 + ... + 923774.

It is an arithmetic number, because the mean of its divisors is an integer number (262931595).

Almost surely, 2^2228920664 is an apocalyptic number.

It is an amenable number.

2228920664 is a deficient number, since it is larger than the sum of its proper divisors (1977984856).

2228920664 is a wasteful number, since it uses less digits than its factorization.

2228920664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845290 (or 1845286 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 2228920664 is about 47211.4463239583. The cubic root of 2228920664 is about 1306.2657408144.

The spelling of 2228920664 in words is "two billion, two hundred twenty-eight million, nine hundred twenty thousand, six hundred sixty-four".