22413331 has 4 divisors (see below), whose sum is σ = 23593000. Its totient is φ = 21233664.

The previous prime is 22413323. The next prime is 22413353. The reversal of 22413331 is 13331422.

It is a semiprime because it is the product of two primes.

It is a 18-Lehmer number, since φ(22413331) divides (22413331-1)¹⁸.

It is a cyclic number.

It is not a de Polignac number, because 22413331 - 2³ = 22413323 is a prime.

It is a super-2 number, since 2×22413331² = 1004714813031122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1179649 = 22413331 / (2 + 2 + 4 + 1 + 3 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22413299 and 22413308.

It is not an unprimeable number, because it can be changed into a prime (22413731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589806 + ... + 589843.

It is an arithmetic number, because the mean of its divisors is an integer number (5898250).

Almost surely, 2^22413331 is an apocalyptic number.

22413331 is a deficient number, since it is larger than the sum of its proper divisors (1179669).

22413331 is a wasteful number, since it uses less digits than its factorization.

22413331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179668.

The product of its digits is 432, while the sum is 19.

The square root of 22413331 is about 4734.2719609249. The cubic root of 22413331 is about 281.9478593471.

Adding to 22413331 its reverse (13331422), we get a palindrome (35744753).

The spelling of 22413331 in words is "twenty-two million, four hundred thirteen thousand, three hundred thirty-one".