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22044042 = 233408223
BaseRepresentation
bin101010000010…
…1110110001010
31112110221202000
41110011312022
521120402132
62104251430
7355241226
oct124056612
945427660
1022044042
1111497019
127470b76
13474a917
142cdb786
151e0687c
hex1505d8a

22044042 has 16 divisors (see below), whose sum is σ = 48986880. Its totient is φ = 7347996.

The previous prime is 22044017. The next prime is 22044049. The reversal of 22044042 is 24044022.

22044042 is a `hidden beast` number, since 220 + 440 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22044049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204058 + ... + 204165.

It is an arithmetic number, because the mean of its divisors is an integer number (3061680).

Almost surely, 222044042 is an apocalyptic number.

22044042 is an abundant number, since it is smaller than the sum of its proper divisors (26942838).

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

22044042 is a wasteful number, since it uses less digits than its factorization.

22044042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408234 (or 408228 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 22044042 is about 4695.1083054601. The cubic root of 22044042 is about 280.3907893648.

Adding to 22044042 its reverse (24044022), we get a palindrome (46088064).

The spelling of 22044042 in words is "twenty-two million, forty-four thousand, forty-two".

Divisors: 1 2 3 6 9 18 27 54 408223 816446 1224669 2449338 3674007 7348014 11022021 22044042