22409916 has 24 divisors (see below), whose sum is σ = 52800384. Its totient is φ = 7397040.

The previous prime is 22409887. The next prime is 22409941. The reversal of 22409916 is 61990422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7830 + ... + 10301.

It is an arithmetic number, because the mean of its divisors is an integer number (2200016).

Almost surely, 2^22409916 is an apocalyptic number.

It is an amenable number.

22409916 is an abundant number, since it is smaller than the sum of its proper divisors (30390468).

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

22409916 is a wasteful number, since it uses less digits than its factorization.

22409916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18241 (or 18239 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 22409916 is about 4733.9112792700. The cubic root of 22409916 is about 281.9335389880.

It can be divided in two parts, 224099 and 16, that added together give a triangular number (224115 = T₆₆₉).

The spelling of 22409916 in words is "twenty-two million, four hundred nine thousand, nine hundred sixteen".