2221954680 has 64 divisors (see below), whose sum is σ = 7271856000. Its totient is φ = 538655360.

The previous prime is 2221954663. The next prime is 2221954703. The reversal of 2221954680 is 864591222.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 840330 + ... + 842969.

It is an arithmetic number, because the mean of its divisors is an integer number (113622750).

Almost surely, 2^2221954680 is an apocalyptic number.

2221954680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221954680 is an abundant number, since it is smaller than the sum of its proper divisors (5049901320).

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

2221954680 is a wasteful number, since it uses less digits than its factorization.

2221954680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683324 (or 1683320 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 2221954680 is about 47137.6142798933. The cubic root of 2221954680 is about 1304.9035086684.

The spelling of 2221954680 in words is "two billion, two hundred twenty-one million, nine hundred fifty-four thousand, six hundred eighty".