2220546 has 8 divisors (see below), whose sum is σ = 4441104. Its totient is φ = 740180.

The previous prime is 2220539. The next prime is 2220551. The reversal of 2220546 is 6450222.

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

2220546 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185040 + ... + 185051.

It is an arithmetic number, because the mean of its divisors is an integer number (555138).

2^2220546 is an apocalyptic number.

2220546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2220546 is a wasteful number, since it uses less digits than its factorization.

2220546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370096.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2220546 is about 1490.1496569137. The cubic root of 2220546 is about 130.4627688451.

Adding to 2220546 its reverse (6450222), we get a palindrome (8670768).

The spelling of 2220546 in words is "two million, two hundred twenty thousand, five hundred forty-six".