22315441 has 4 divisors (see below), whose sum is σ = 23628132. Its totient is φ = 21002752.

The previous prime is 22315429. The next prime is 22315453. The reversal of 22315441 is 14451322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14451322 = 2 ⋅7225661.

It is an interprime number because it is at equal distance from previous prime (22315429) and next prime (22315453).

It can be written as a sum of positive squares in 2 ways, for example, as 13905441 + 8410000 = 3729^2 + 2900^2 .

It is not a de Polignac number, because 22315441 - 2¹¹ = 22313393 is a prime.

It is a super-3 number, since 3×22315441³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22315411) 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, 656320 + ... + 656353.

It is an arithmetic number, because the mean of its divisors is an integer number (5907033).

Almost surely, 2^22315441 is an apocalyptic number.

It is an amenable number.

22315441 is a deficient number, since it is larger than the sum of its proper divisors (1312691).

22315441 is a wasteful number, since it uses less digits than its factorization.

22315441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312690.

The product of its digits is 960, while the sum is 22.

The square root of 22315441 is about 4723.9222051173. The cubic root of 22315441 is about 281.5367921649.

Adding to 22315441 its reverse (14451322), we get a palindrome (36766763).

The spelling of 22315441 in words is "twenty-two million, three hundred fifteen thousand, four hundred forty-one".