40322213 has 2 divisors, whose sum is σ = 40322214. Its totient is φ = 40322212.

The previous prime is 40322179. The next prime is 40322263. The reversal of 40322213 is 31222304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28058209 + 12264004 = 5297^2 + 3502^2 .

It is a cyclic number.

It is not a de Polignac number, because 40322213 - 2¹⁶ = 40256677 is a prime.

It is a super-2 number, since 2×40322213² = 3251761722434738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40322191 and 40322200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40322263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161106 + 20161107.

It is an arithmetic number, because the mean of its divisors is an integer number (20161107).

Almost surely, 2^40322213 is an apocalyptic number.

It is an amenable number.

40322213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40322213 is an equidigital number, since it uses as much as digits as its factorization.

40322213 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 40322213 is about 6349.9774015346. The cubic root of 40322213 is about 342.9110287246.

Adding to 40322213 its reverse (31222304), we get a palindrome (71544517).

Subtracting from 40322213 its reverse (31222304), we obtain a palindrome (9099909).

The spelling of 40322213 in words is "forty million, three hundred twenty-two thousand, two hundred thirteen".