22263489 has 12 divisors (see below), whose sum is σ = 34050276. Its totient is φ = 13969152.

The previous prime is 22263469. The next prime is 22263499. The reversal of 22263489 is 98436222.

It can be written as a sum of positive squares in 2 ways, for example, as 14311089 + 7952400 = 3783^2 + 2820^2 .

It is not a de Polignac number, because 22263489 - 2⁵ = 22263457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22263419) 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 11 ways as a sum of consecutive naturals, for example, 72604 + ... + 72909.

It is an arithmetic number, because the mean of its divisors is an integer number (2837523).

Almost surely, 2^22263489 is an apocalyptic number.

It is an amenable number.

22263489 is a deficient number, since it is larger than the sum of its proper divisors (11786787).

22263489 is a wasteful number, since it uses less digits than its factorization.

22263489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145536 (or 145533 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 22263489 is about 4718.4201805265. The cubic root of 22263489 is about 281.3181428960.

The spelling of 22263489 in words is "twenty-two million, two hundred sixty-three thousand, four hundred eighty-nine".