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4240444 = 221381547
BaseRepresentation
bin10000001011010000111100
321222102210111
4100023100330
52041143234
6230515404
751020545
oct20132074
97872714
104240444
1124369aa
121505b64
13b56150
147c54cc
1558b664
hex40b43c

4240444 has 12 divisors (see below), whose sum is σ = 7991704. Its totient is φ = 1957104.

The previous prime is 4240433. The next prime is 4240447. The reversal of 4240444 is 4440424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240447) 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, 40722 + ... + 40825.

Almost surely, 24240444 is an apocalyptic number.

It is an amenable number.

4240444 is a deficient number, since it is larger than the sum of its proper divisors (3751260).

4240444 is a wasteful number, since it uses less digits than its factorization.

4240444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81564 (or 81562 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4240444 is about 2059.2338381058. The cubic root of 4240444 is about 161.8590960956.

Adding to 4240444 its reverse (4440424), we get a palindrome (8680868).

The spelling of 4240444 in words is "four million, two hundred forty thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 81547 163094 326188 1060111 2120222 4240444