40519393 has 2 divisors, whose sum is σ = 40519394. Its totient is φ = 40519392.

The previous prime is 40519361. The next prime is 40519397. The reversal of 40519393 is 39391504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26132544 + 14386849 = 5112^2 + 3793^2 .

It is a cyclic number.

It is not a de Polignac number, because 40519393 - 2⁵ = 40519361 is a prime.

It is not a weakly prime, because it can be changed into another prime (40519397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20259696 + 20259697.

It is an arithmetic number, because the mean of its divisors is an integer number (20259697).

Almost surely, 2^40519393 is an apocalyptic number.

It is an amenable number.

40519393 is a deficient number, since it is larger than the sum of its proper divisors (1).

40519393 is an equidigital number, since it uses as much as digits as its factorization.

40519393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 40519393 is about 6365.4845063043. The cubic root of 40519393 is about 343.4690774596.

The spelling of 40519393 in words is "forty million, five hundred nineteen thousand, three hundred ninety-three".