22263072 has 48 divisors (see below), whose sum is σ = 62939520. Its totient is φ = 6849792.

The previous prime is 22263067. The next prime is 22263113. The reversal of 22263072 is 27036222.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7672 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (1311240).

Almost surely, 2^22263072 is an apocalyptic number.

It is an amenable number.

22263072 is an abundant number, since it is smaller than the sum of its proper divisors (40676448).

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

22263072 is a wasteful number, since it uses less digits than its factorization.

22263072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17865 (or 17857 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 22263072 is about 4718.3759918006. The cubic root of 22263072 is about 281.3163865017.

Adding to 22263072 its reverse (27036222), we get a palindrome (49299294).

The spelling of 22263072 in words is "twenty-two million, two hundred sixty-three thousand, seventy-two".