40793 has 6 divisors (see below), whose sum is σ = 43434. Its totient is φ = 38304.
The previous prime is 40787. The next prime is 40801. The reversal of 40793 is 39704.
It can be written as a sum of positive squares in only one way, i.e., 23104 + 17689 = 152^2 + 133^2 .
It is not a de Polignac number, because 40793 - 210 = 39769 is a prime.
It is not an unprimeable number, because it can be changed into a prime (40763) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305 + ... + 417.
It is an arithmetic number, because the mean of its divisors is an integer number (7239).
240793 is an apocalyptic number.
It is an amenable number.
40793 is a deficient number, since it is larger than the sum of its proper divisors (2641).
40793 is a wasteful number, since it uses less digits than its factorization.
40793 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 151 (or 132 counting only the distinct ones).
The product of its (nonzero) digits is 756, while the sum is 23.
The square root of 40793 is about 201.9727704420. The cubic root of 40793 is about 34.4240434940.
Subtracting from 40793 its reverse (39704), we obtain a square (1089 = 332).
The spelling of 40793 in words is "forty thousand, seven hundred ninety-three".
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