40429223 has 2 divisors, whose sum is σ = 40429224. Its totient is φ = 40429222.

The previous prime is 40429211. The next prime is 40429267. The reversal of 40429223 is 32292404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40429223 - 2⁸ = 40428967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40429192 and 40429201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40429273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20214611 + 20214612.

It is an arithmetic number, because the mean of its divisors is an integer number (20214612).

Almost surely, 2^40429223 is an apocalyptic number.

40429223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40429223 is an equidigital number, since it uses as much as digits as its factorization.

40429223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40429223 is about 6358.3978327878. The cubic root of 40429223 is about 343.2141081196.

The spelling of 40429223 in words is "forty million, four hundred twenty-nine thousand, two hundred twenty-three".