22447152 has 160 divisors (see below), whose sum is σ = 79439360. Its totient is φ = 5909760.

The previous prime is 22447129. The next prime is 22447169. The reversal of 22447152 is 25174422.

It is a super-2 number, since 2×22447152² = 1007749265822208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39027 + ... + 39597.

It is an arithmetic number, because the mean of its divisors is an integer number (496496).

Almost surely, 2^22447152 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 22447152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39719680).

22447152 is an abundant number, since it is smaller than the sum of its proper divisors (56992208).

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

22447152 is a wasteful number, since it uses less digits than its factorization.

22447152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 596 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 22447152 is about 4737.8425469828. The cubic root of 22447152 is about 282.0896048435.

The spelling of 22447152 in words is "twenty-two million, four hundred forty-seven thousand, one hundred fifty-two".