22216474 has 8 divisors (see below), whose sum is σ = 38085408. Its totient is φ = 9521340.

The previous prime is 22216457. The next prime is 22216507. The reversal of 22216474 is 47461222.

It is a happy number.

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

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, 793432 + ... + 793459.

It is an arithmetic number, because the mean of its divisors is an integer number (4760676).

Almost surely, 2^22216474 is an apocalyptic number.

22216474 is a deficient number, since it is larger than the sum of its proper divisors (15868934).

22216474 is a wasteful number, since it uses less digits than its factorization.

22216474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586900.

The product of its digits is 5376, while the sum is 28.

The square root of 22216474 is about 4713.4354774411. The cubic root of 22216474 is about 281.1199784848.

Adding to 22216474 its reverse (47461222), we get a palindrome (69677696).

The spelling of 22216474 in words is "twenty-two million, two hundred sixteen thousand, four hundred seventy-four".