22326881 has 4 divisors (see below), whose sum is σ = 23502000. Its totient is φ = 21151764.

The previous prime is 22326869. The next prime is 22326907. The reversal of 22326881 is 18862322.

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 22326881 - 2⁶ = 22326817 is a prime.

It is a super-3 number, since 3×22326881³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22326581) 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, 587531 + ... + 587568.

It is an arithmetic number, because the mean of its divisors is an integer number (5875500).

Almost surely, 2^22326881 is an apocalyptic number.

It is an amenable number.

22326881 is a deficient number, since it is larger than the sum of its proper divisors (1175119).

22326881 is a wasteful number, since it uses less digits than its factorization.

22326881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175118.

The product of its digits is 9216, while the sum is 32.

The square root of 22326881 is about 4725.1329081836. The cubic root of 22326881 is about 281.5848938460.

The spelling of 22326881 in words is "twenty-two million, three hundred twenty-six thousand, eight hundred eighty-one".