22049472 has 56 divisors (see below), whose sum is σ = 59783472. Its totient is φ = 7168000.

The previous prime is 22049437. The next prime is 22049491. The reversal of 22049472 is 27494022.

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, 6472 + ... + 9272.

It is an arithmetic number, because the mean of its divisors is an integer number (1067562).

Almost surely, 2^22049472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22049472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29891736).

22049472 is an abundant number, since it is smaller than the sum of its proper divisors (37734000).

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

22049472 is a wasteful number, since it uses less digits than its factorization.

22049472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857 (or 2847 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22049472 is about 4695.6865312753. The cubic root of 22049472 is about 280.4138099009.

The spelling of 22049472 in words is "twenty-two million, forty-nine thousand, four hundred seventy-two".