22681441 has 4 divisors (see below), whose sum is σ = 22800384. Its totient is φ = 22562500.

The previous prime is 22681433. The next prime is 22681457. The reversal of 22681441 is 14418622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14418622 = 2 ⋅7209311.

It is a 6-Lehmer number, since φ(22681441) divides (22681441-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 22681441 - 2³ = 22681433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22601441) 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, 59185 + ... + 59566.

It is an arithmetic number, because the mean of its divisors is an integer number (5700096).

Almost surely, 2^22681441 is an apocalyptic number.

It is an amenable number.

22681441 is a deficient number, since it is larger than the sum of its proper divisors (118943).

22681441 is a wasteful number, since it uses less digits than its factorization.

22681441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118942.

The product of its digits is 3072, while the sum is 28.

The square root of 22681441 is about 4762.5036482926. The cubic root of 22681441 is about 283.0676335748.

The spelling of 22681441 in words is "twenty-two million, six hundred eighty-one thousand, four hundred forty-one".