22464881 has 4 divisors (see below), whose sum is σ = 22478064. Its totient is φ = 22451700.

The previous prime is 22464857. The next prime is 22464887. The reversal of 22464881 is 18846422.

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 a de Polignac number, because none of the positive numbers 2^k-22464881 is a prime.

It is a super-2 number, since 2×22464881² = 1009341756688322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22464887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3575 + ... + 7596.

It is an arithmetic number, because the mean of its divisors is an integer number (5619516).

Almost surely, 2^22464881 is an apocalyptic number.

It is an amenable number.

22464881 is a deficient number, since it is larger than the sum of its proper divisors (13183).

22464881 is a wasteful number, since it uses less digits than its factorization.

22464881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13182.

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

The square root of 22464881 is about 4739.7131769760. The cubic root of 22464881 is about 282.1638510927.

The spelling of 22464881 in words is "twenty-two million, four hundred sixty-four thousand, eight hundred eighty-one".