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40044 = 2234771
BaseRepresentation
bin1001110001101100
32000221010
421301230
52240134
6505220
7224514
oct116154
960833
1040044
11280a4
121b210
13152c4
1410844
15bce9
hex9c6c

40044 has 24 divisors (see below), whose sum is σ = 96768. Its totient is φ = 12880.

The previous prime is 40039. The next prime is 40063. The reversal of 40044 is 44004.

40044 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

40044 is a modest number, since divided by 44 gives 4 as remainder.

It is a congruent number.

It is an unprimeable number.

40044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529 + ... + 599.

It is an arithmetic number, because the mean of its divisors is an integer number (4032).

240044 is an apocalyptic number.

It is an amenable number.

40044 is an abundant number, since it is smaller than the sum of its proper divisors (56724).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48384).

40044 is a wasteful number, since it uses less digits than its factorization.

40044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 40044 is about 200.1099697666. The cubic root of 40044 is about 34.2120541620.

Adding to 40044 its reverse (44004), we get a palindrome (84048).

It can be divided in two parts, 400 and 44, that added together give a palindrome (444).

The spelling of 40044 in words is "forty thousand, forty-four", and thus it is an eban number and an iban number.

Divisors: 1 2 3 4 6 12 47 71 94 141 142 188 213 282 284 426 564 852 3337 6674 10011 13348 20022 40044