22328493 has 12 divisors (see below), whose sum is σ = 32724384. Its totient is φ = 13532200.

The previous prime is 22328483. The next prime is 22328513. The reversal of 22328493 is 39482322.

It is not a de Polignac number, because 22328493 - 2¹³ = 22320301 is a prime.

It is a super-3 number, since 3×22328493³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22328413) 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, 30393 + ... + 31118.

It is an arithmetic number, because the mean of its divisors is an integer number (2727032).

Almost surely, 2^22328493 is an apocalyptic number.

It is an amenable number.

22328493 is a deficient number, since it is larger than the sum of its proper divisors (10395891).

22328493 is a wasteful number, since it uses less digits than its factorization.

22328493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61536 (or 61525 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 22328493 is about 4725.3034823173. The cubic root of 22328493 is about 281.5916704893.

The spelling of 22328493 in words is "twenty-two million, three hundred twenty-eight thousand, four hundred ninety-three".