2221607424 has 40 divisors (see below), whose sum is σ = 5918505120. Its totient is φ = 740535296.

The previous prime is 2221607407. The next prime is 2221607429. The reversal of 2221607424 is 4247061222.

It is a junction number, because it is equal to n+sod(n) for n = 2221607391 and 2221607400.

It is not an unprimeable number, because it can be changed into a prime (2221607429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721644 + ... + 724715.

It is an arithmetic number, because the mean of its divisors is an integer number (147962628).

Almost surely, 2^2221607424 is an apocalyptic number.

2221607424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2221607424 is an abundant number, since it is smaller than the sum of its proper divisors (3696897696).

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

2221607424 is an equidigital number, since it uses as much as digits as its factorization.

2221607424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446380 (or 1446364 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 2221607424 is about 47133.9307081427. The cubic root of 2221607424 is about 1304.8355266066.

Adding to 2221607424 its reverse (4247061222), we get a palindrome (6468668646).

The spelling of 2221607424 in words is "two billion, two hundred twenty-one million, six hundred seven thousand, four hundred twenty-four".