40201423 has 2 divisors, whose sum is σ = 40201424. Its totient is φ = 40201422.

The previous prime is 40201393. The next prime is 40201429. The reversal of 40201423 is 32410204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40201423 is a prime.

It is a super-2 number, since 2×40201423² = 3232308822449858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40201397 and 40201406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40201429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100711 + 20100712.

It is an arithmetic number, because the mean of its divisors is an integer number (20100712).

Almost surely, 2^40201423 is an apocalyptic number.

40201423 is a deficient number, since it is larger than the sum of its proper divisors (1).

40201423 is an equidigital number, since it uses as much as digits as its factorization.

40201423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40201423 is about 6340.4592104989. The cubic root of 40201423 is about 342.5682759440.

Adding to 40201423 its reverse (32410204), we get a palindrome (72611627).

The spelling of 40201423 in words is "forty million, two hundred one thousand, four hundred twenty-three".