40401293 has 2 divisors, whose sum is σ = 40401294. Its totient is φ = 40401292.

The previous prime is 40401259. The next prime is 40401301. The reversal of 40401293 is 39210404.

40401293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21409129 + 18992164 = 4627^2 + 4358^2 .

It is a cyclic number.

It is not a de Polignac number, because 40401293 - 2¹² = 40397197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40401223) 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, 20200646 + 20200647.

It is an arithmetic number, because the mean of its divisors is an integer number (20200647).

Almost surely, 2^40401293 is an apocalyptic number.

It is an amenable number.

40401293 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401293 is an equidigital number, since it uses as much as digits as its factorization.

40401293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40401293 is about 6356.2011453383. The cubic root of 40401293 is about 343.1350549197.

Adding to 40401293 its reverse (39210404), we get a palindrome (79611697).

The spelling of 40401293 in words is "forty million, four hundred one thousand, two hundred ninety-three".