22273824 has 48 divisors (see below), whose sum is σ = 59905440. Its totient is φ = 7242240.

The previous prime is 22273789. The next prime is 22273829. The reversal of 22273824 is 42837222.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×22273824² = 992246471165952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22273791 and 22273800.

It is not an unprimeable number, because it can be changed into a prime (22273829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107 + ... + 6765.

It is an arithmetic number, because the mean of its divisors is an integer number (1248030).

Almost surely, 2^22273824 is an apocalyptic number.

22273824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22273824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29952720).

22273824 is an abundant number, since it is smaller than the sum of its proper divisors (37631616).

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

22273824 is a wasteful number, since it uses less digits than its factorization.

22273824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713 (or 5705 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 22273824 is about 4719.5152293429. The cubic root of 22273824 is about 281.3616666707.

The spelling of 22273824 in words is "twenty-two million, two hundred seventy-three thousand, eight hundred twenty-four".