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40324393 is a prime number
BaseRepresentation
bin1001100111010…
…0110100101001
32210212200200001
42121310310221
540310340033
64000143001
7666515554
oct231646451
983780601
1040324393
112084234a
1211607a61
13847b3b5
1454d969b
153817e7d
hex2674d29

40324393 has 2 divisors, whose sum is σ = 40324394. Its totient is φ = 40324392.

The previous prime is 40324373. The next prime is 40324423. The reversal of 40324393 is 39342304.

40324393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39904489 + 419904 = 6317^2 + 648^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40324393 is a prime.

It is not a weakly prime, because it can be changed into another prime (40324303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20162196 + 20162197.

It is an arithmetic number, because the mean of its divisors is an integer number (20162197).

Almost surely, 240324393 is an apocalyptic number.

It is an amenable number.

40324393 is a deficient number, since it is larger than the sum of its proper divisors (1).

40324393 is an equidigital number, since it uses as much as digits as its factorization.

40324393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 40324393 is about 6350.1490533687. The cubic root of 40324393 is about 342.9172083835.

Adding to 40324393 its reverse (39342304), we get a palindrome (79666697).

The spelling of 40324393 in words is "forty million, three hundred twenty-four thousand, three hundred ninety-three".