22409446 has 8 divisors (see below), whose sum is σ = 34087824. Its totient is φ = 11046840.

The previous prime is 22409437. The next prime is 22409461. The reversal of 22409446 is 64490422.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78765 + ... + 79048.

It is an arithmetic number, because the mean of its divisors is an integer number (4260978).

Almost surely, 2^22409446 is an apocalyptic number.

22409446 is a deficient number, since it is larger than the sum of its proper divisors (11678378).

22409446 is a wasteful number, since it uses less digits than its factorization.

22409446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157886.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 22409446 is about 4733.8616371837. The cubic root of 22409446 is about 281.9315679902.

Adding to 22409446 its reverse (64490422), we get a palindrome (86899868).

The spelling of 22409446 in words is "twenty-two million, four hundred nine thousand, four hundred forty-six".