22280416 has 12 divisors (see below), whose sum is σ = 43864632. Its totient is φ = 11140192.

The previous prime is 22280411. The next prime is 22280431. The reversal of 22280416 is 61408222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22280411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348100 + ... + 348163.

It is an arithmetic number, because the mean of its divisors is an integer number (3655386).

Almost surely, 2^22280416 is an apocalyptic number.

It is an amenable number.

22280416 is a deficient number, since it is larger than the sum of its proper divisors (21584216).

22280416 is an equidigital number, since it uses as much as digits as its factorization.

22280416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696273 (or 696265 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 22280416 is about 4720.2135544909. The cubic root of 22280416 is about 281.3894205215.

Adding to 22280416 its reverse (61408222), we get a palindrome (83688638).

The spelling of 22280416 in words is "twenty-two million, two hundred eighty thousand, four hundred sixteen".