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40208 = 247359
BaseRepresentation
bin1001110100010000
32001011012
421310100
52241313
6510052
7225140
oct116420
961135
1040208
1128233
121b328
13153bc
1410920
15bda8
hex9d10

40208 has 20 divisors (see below), whose sum is σ = 89280. Its totient is φ = 17184.

The previous prime is 40193. The next prime is 40213. The reversal of 40208 is 80204.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 40192 and 40201.

It is an unprimeable number.

40208 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 3 ways as a sum of consecutive naturals, for example, 68 + ... + 291.

It is an arithmetic number, because the mean of its divisors is an integer number (4464).

240208 is an apocalyptic number.

It is an amenable number.

40208 is an abundant number, since it is smaller than the sum of its proper divisors (49072).

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 (44640).

40208 is a wasteful number, since it uses less digits than its factorization.

40208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 40208 is about 200.5193257519. The cubic root of 40208 is about 34.2586956449.

The spelling of 40208 in words is "forty thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 359 718 1436 2513 2872 5026 5744 10052 20104 40208