2220464 has 20 divisors (see below), whose sum is σ = 4345704. Its totient is φ = 1099008.

The previous prime is 2220457. The next prime is 2220467. The reversal of 2220464 is 4640222.

It is a d-powerful number, because it can be written as 2⁵ + 2⁷ + 2¹⁹ + 0 + 4² + 6⁸ + 4⁷ .

It is not an unprimeable number, because it can be changed into a prime (2220467) 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, 1064 + ... + 2360.

2^2220464 is an apocalyptic number.

It is an amenable number.

2220464 is a deficient number, since it is larger than the sum of its proper divisors (2125240).

2220464 is a wasteful number, since it uses less digits than its factorization.

2220464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2220464 is about 1490.1221426447. The cubic root of 2220464 is about 130.4611629219.

Adding to 2220464 its reverse (4640222), we get a palindrome (6860686).

The spelling of 2220464 in words is "two million, two hundred twenty thousand, four hundred sixty-four".