2221416 has 24 divisors (see below), whose sum is σ = 6016530. Its totient is φ = 740448.

The previous prime is 2221411. The next prime is 2221433. The reversal of 2221416 is 6141222.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 60516 = 1470^2 + 246^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2221411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15355 + ... + 15498.

2^2221416 is an apocalyptic number.

It is an amenable number.

2221416 is an abundant number, since it is smaller than the sum of its proper divisors (3795114).

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

2221416 is a wasteful number, since it uses less digits than its factorization.

2221416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30865 (or 30858 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2221416 is about 1490.4415453147. The cubic root of 2221416 is about 130.4798048636.

Adding to 2221416 its reverse (6141222), we get a palindrome (8362638).

The spelling of 2221416 in words is "two million, two hundred twenty-one thousand, four hundred sixteen".