22324649 has 4 divisors (see below), whose sum is σ = 22369536. Its totient is φ = 22279764.

The previous prime is 22324637. The next prime is 22324657. The reversal of 22324649 is 94642322.

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: 94642322 = 2 ⋅47321161.

It is a cyclic number.

It is not a de Polignac number, because 22324649 - 2⁴ = 22324633 is a prime.

It is a super-3 number, since 3×22324649³ (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 (22324669) 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, 21689 + ... + 22694.

It is an arithmetic number, because the mean of its divisors is an integer number (5592384).

Almost surely, 2^22324649 is an apocalyptic number.

It is an amenable number.

22324649 is a deficient number, since it is larger than the sum of its proper divisors (44887).

22324649 is an equidigital number, since it uses as much as digits as its factorization.

22324649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44886.

The product of its digits is 20736, while the sum is 32.

The square root of 22324649 is about 4724.8967184479. The cubic root of 22324649 is about 281.5755102629.

The spelling of 22324649 in words is "twenty-two million, three hundred twenty-four thousand, six hundred forty-nine".