2221776924 has 24 divisors (see below), whose sum is σ = 5272014720. Its totient is φ = 728039664.

The previous prime is 2221776889. The next prime is 2221776929. The reversal of 2221776924 is 4296771222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221776929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568344 + ... + 1569759.

It is an arithmetic number, because the mean of its divisors is an integer number (219667280).

Almost surely, 2^2221776924 is an apocalyptic number.

It is an amenable number.

2221776924 is an abundant number, since it is smaller than the sum of its proper divisors (3050237796).

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

2221776924 is a wasteful number, since it uses less digits than its factorization.

2221776924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138169 (or 3138167 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 2221776924 is about 47135.7287415820. The cubic root of 2221776924 is about 1304.8687103868.

The spelling of 2221776924 in words is "two billion, two hundred twenty-one million, seven hundred seventy-six thousand, nine hundred twenty-four".