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44140 = 2252207
BaseRepresentation
bin1010110001101100
32020112211
422301230
52403030
6540204
7242455
oct126154
966484
1044140
1130188
1221664
1317125
141212c
15d12a
hexac6c

44140 has 12 divisors (see below), whose sum is σ = 92736. Its totient is φ = 17648.

The previous prime is 44131. The next prime is 44159. The reversal of 44140 is 4144.

It is a happy number.

44140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 44140.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (7728).

244140 is an apocalyptic number.

It is an amenable number.

44140 is an abundant number, since it is smaller than the sum of its proper divisors (48596).

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 (46368).

44140 is a wasteful number, since it uses less digits than its factorization.

44140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 44140 is about 210.0952165091. The cubic root of 44140 is about 35.3408867993.

Adding to 44140 its reverse (4144), we get a palindrome (48284).

The spelling of 44140 in words is "forty-four thousand, one hundred forty", and thus it is an iban number.

Divisors: 1 2 4 5 10 20 2207 4414 8828 11035 22070 44140