22448861 has 4 divisors (see below), whose sum is σ = 23630400. Its totient is φ = 21267324.

The previous prime is 22448843. The next prime is 22448863. The reversal of 22448861 is 16884422.

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.

It is a cyclic number.

It is not a de Polignac number, because 22448861 - 2¹⁴ = 22432477 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22448863) 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, 590741 + ... + 590778.

It is an arithmetic number, because the mean of its divisors is an integer number (5907600).

Almost surely, 2^22448861 is an apocalyptic number.

It is an amenable number.

22448861 is a deficient number, since it is larger than the sum of its proper divisors (1181539).

22448861 is a wasteful number, since it uses less digits than its factorization.

22448861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181538.

The product of its digits is 24576, while the sum is 35.

The square root of 22448861 is about 4738.0228999024. The cubic root of 22448861 is about 282.0967635675.

The spelling of 22448861 in words is "twenty-two million, four hundred forty-eight thousand, eight hundred sixty-one".