22400573 has 8 divisors (see below), whose sum is σ = 24235008. Its totient is φ = 20582064.

The previous prime is 22400533. The next prime is 22400591. The reversal of 22400573 is 37500422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22400573 - 2¹⁸ = 22138429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (3029376).

Almost surely, 2^22400573 is an apocalyptic number.

It is an amenable number.

22400573 is a deficient number, since it is larger than the sum of its proper divisors (1834435).

22400573 is a wasteful number, since it uses less digits than its factorization.

22400573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 22400573 is about 4732.9243602661. The cubic root of 22400573 is about 281.8943528943.

Adding to 22400573 its reverse (37500422), we get a palindrome (59900995).

The spelling of 22400573 in words is "twenty-two million, four hundred thousand, five hundred seventy-three".