40140413 has 2 divisors, whose sum is σ = 40140414. Its totient is φ = 40140412.

The previous prime is 40140403. The next prime is 40140421. The reversal of 40140413 is 31404104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25836889 + 14303524 = 5083^2 + 3782^2 .

It is a cyclic number.

It is not a de Polignac number, because 40140413 - 2¹⁶ = 40074877 is a prime.

It is a super-2 number, since 2×40140413² = 3222505511621138, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40140391 and 40140400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40140403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20070206 + 20070207.

It is an arithmetic number, because the mean of its divisors is an integer number (20070207).

Almost surely, 2^40140413 is an apocalyptic number.

It is an amenable number.

40140413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40140413 is an equidigital number, since it uses as much as digits as its factorization.

40140413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40140413 is about 6335.6462180270. The cubic root of 40140413 is about 342.3948934235.

Adding to 40140413 its reverse (31404104), we get a palindrome (71544517).

The spelling of 40140413 in words is "forty million, one hundred forty thousand, four hundred thirteen".