40023413 has 2 divisors, whose sum is σ = 40023414. Its totient is φ = 40023412.

The previous prime is 40023407. The next prime is 40023419. The reversal of 40023413 is 31432004.

It is a balanced prime because it is at equal distance from previous prime (40023407) and next prime (40023419).

It can be written as a sum of positive squares in only one way, i.e., 24039409 + 15984004 = 4903^2 + 3998^2 .

It is a cyclic number.

It is not a de Polignac number, because 40023413 - 2⁴ = 40023397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40023391 and 40023400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40023419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011706 + 20011707.

It is an arithmetic number, because the mean of its divisors is an integer number (20011707).

Almost surely, 2^40023413 is an apocalyptic number.

It is an amenable number.

40023413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40023413 is an equidigital number, since it uses as much as digits as its factorization.

40023413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40023413 is about 6326.4060097341. The cubic root of 40023413 is about 342.0619024322.

Adding to 40023413 its reverse (31432004), we get a palindrome (71455417).

The spelling of 40023413 in words is "forty million, twenty-three thousand, four hundred thirteen".