40322423 has 2 divisors, whose sum is σ = 40322424. Its totient is φ = 40322422.

The previous prime is 40322377. The next prime is 40322431. The reversal of 40322423 is 32422304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40322423 - 2⁸ = 40322167 is a prime.

It is equal to p_2452124 and since 40322423 and 2452124 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 40322395 and 40322404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40322483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161211 + 20161212.

It is an arithmetic number, because the mean of its divisors is an integer number (20161212).

Almost surely, 2^40322423 is an apocalyptic number.

40322423 is a deficient number, since it is larger than the sum of its proper divisors (1).

40322423 is an equidigital number, since it uses as much as digits as its factorization.

40322423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40322423 is about 6349.9939370050. The cubic root of 40322423 is about 342.9116240225.

Adding to 40322423 its reverse (32422304), we get a palindrome (72744727).

The spelling of 40322423 in words is "forty million, three hundred twenty-two thousand, four hundred twenty-three".