22223493 has 6 divisors (see below), whose sum is σ = 32100614. Its totient is φ = 14815656.

The previous prime is 22223491. The next prime is 22223501. The reversal of 22223493 is 39432222.

It can be written as a sum of positive squares in only one way, i.e., 21095649 + 1127844 = 4593^2 + 1062^2 .

It is not a de Polignac number, because 22223493 - 2¹ = 22223491 is a prime.

It is a super-2 number, since 2×22223493² = 987767282242098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223491) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1234630 + ... + 1234647.

Almost surely, 2^22223493 is an apocalyptic number.

It is an amenable number.

22223493 is a deficient number, since it is larger than the sum of its proper divisors (9877121).

22223493 is a wasteful number, since it uses less digits than its factorization.

22223493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469283 (or 2469280 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 22223493 is about 4714.1799923210. The cubic root of 22223493 is about 281.1495807425.

The spelling of 22223493 in words is "twenty-two million, two hundred twenty-three thousand, four hundred ninety-three".