22243075 has 12 divisors (see below), whose sum is σ = 27641088. Its totient is φ = 17756000.

The previous prime is 22243063. The next prime is 22243097. The reversal of 22243075 is 57034222.

It is not a de Polignac number, because 22243075 - 2⁵ = 22243043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18750 + ... + 19900.

It is an arithmetic number, because the mean of its divisors is an integer number (2303424).

Almost surely, 2^22243075 is an apocalyptic number.

22243075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22243075 is a deficient number, since it is larger than the sum of its proper divisors (5398013).

22243075 is a wasteful number, since it uses less digits than its factorization.

22243075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22243075 is about 4716.2564603719. The cubic root of 22243075 is about 281.2321338445.

Adding to 22243075 its reverse (57034222), we get a palindrome (79277297).

The spelling of 22243075 in words is "twenty-two million, two hundred forty-three thousand, seventy-five".