22845384 has 96 divisors (see below), whose sum is σ = 65070720. Its totient is φ = 7233408.

The previous prime is 22845379. The next prime is 22845397. The reversal of 22845384 is 48354822.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 145434 + ... + 145590.

It is an arithmetic number, because the mean of its divisors is an integer number (677820).

Almost surely, 2^22845384 is an apocalyptic number.

22845384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22845384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32535360).

22845384 is an abundant number, since it is smaller than the sum of its proper divisors (42225336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22845384 is a wasteful number, since it uses less digits than its factorization.

22845384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 252 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 22845384 is about 4779.6845084168. The cubic root of 22845384 is about 283.7480076451.

Adding to 22845384 its sum of digits (36), we get a triangular number (22845420 = T₆₇₅₉).

The spelling of 22845384 in words is "twenty-two million, eight hundred forty-five thousand, three hundred eighty-four".