22340455 has 4 divisors (see below), whose sum is σ = 26808552. Its totient is φ = 17872360.

The previous prime is 22340441. The next prime is 22340467. The reversal of 22340455 is 55404322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55404322 = 2 ⋅27702161.

It is not a de Polignac number, because 22340455 - 2¹³ = 22332263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234041 + ... + 2234050.

It is an arithmetic number, because the mean of its divisors is an integer number (6702138).

Almost surely, 2^22340455 is an apocalyptic number.

22340455 is a deficient number, since it is larger than the sum of its proper divisors (4468097).

22340455 is an equidigital number, since it uses as much as digits as its factorization.

22340455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468096.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 22340455 is about 4726.5690516484. The cubic root of 22340455 is about 281.6419470310.

Adding to 22340455 its reverse (55404322), we get a palindrome (77744777).

The spelling of 22340455 in words is "twenty-two million, three hundred forty thousand, four hundred fifty-five".