40226513 has 2 divisors, whose sum is σ = 40226514. Its totient is φ = 40226512.

The previous prime is 40226507. The next prime is 40226581. The reversal of 40226513 is 31562204.

40226513 is nontrivially palindromic in base 14.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 14348944 = 5087^2 + 3788^2 .

It is a cyclic number.

It is not a de Polignac number, because 40226513 - 2¹⁸ = 39964369 is a prime.

It is not a weakly prime, because it can be changed into another prime (40226213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20113256 + 20113257.

It is an arithmetic number, because the mean of its divisors is an integer number (20113257).

Almost surely, 2^40226513 is an apocalyptic number.

It is an amenable number.

40226513 is a deficient number, since it is larger than the sum of its proper divisors (1).

40226513 is an equidigital number, since it uses as much as digits as its factorization.

40226513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40226513 is about 6342.4374652022. The cubic root of 40226513 is about 342.6395275727.

Adding to 40226513 its reverse (31562204), we get a palindrome (71788717).

The spelling of 40226513 in words is "forty million, two hundred twenty-six thousand, five hundred thirteen".