22281869 has 8 divisors (see below), whose sum is σ = 22927872. Its totient is φ = 21641760.

The previous prime is 22281829. The next prime is 22281877. The reversal of 22281869 is 96818222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22281869 - 2¹⁶ = 22216333 is a prime.

It is a super-2 number, since 2×22281869² = 992963372266322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22281829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6857 + ... + 9569.

It is an arithmetic number, because the mean of its divisors is an integer number (2865984).

Almost surely, 2^22281869 is an apocalyptic number.

It is an amenable number.

22281869 is a deficient number, since it is larger than the sum of its proper divisors (646003).

22281869 is a wasteful number, since it uses less digits than its factorization.

22281869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947.

The product of its digits is 27648, while the sum is 38.

The square root of 22281869 is about 4720.3674645095. The cubic root of 22281869 is about 281.3955372526.

The spelling of 22281869 in words is "twenty-two million, two hundred eighty-one thousand, eight hundred sixty-nine".