2220747 has 8 divisors (see below), whose sum is σ = 3056640. Its totient is φ = 1432680.

The previous prime is 2220731. The next prime is 2220749. The reversal of 2220747 is 7470222.

2220747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2220747 - 2⁴ = 2220731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11847 + ... + 12032.

It is an arithmetic number, because the mean of its divisors is an integer number (382080).

2^2220747 is an apocalyptic number.

2220747 is a deficient number, since it is larger than the sum of its proper divisors (835893).

2220747 is a wasteful number, since it uses less digits than its factorization.

2220747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23913.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 2220747 is about 1490.2170982780. The cubic root of 2220747 is about 130.4667051480.

Adding to 2220747 its reverse (7470222), we get a palindrome (9690969).

The spelling of 2220747 in words is "two million, two hundred twenty thousand, seven hundred forty-seven".