40223903 has 2 divisors, whose sum is σ = 40223904. Its totient is φ = 40223902.

The previous prime is 40223881. The next prime is 40223917. The reversal of 40223903 is 30932204.

40223903 is nontrivially palindromic in base 7.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40223903 - 2¹⁶ = 40158367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40223933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111951 + 20111952.

It is an arithmetic number, because the mean of its divisors is an integer number (20111952).

Almost surely, 2^40223903 is an apocalyptic number.

40223903 is a deficient number, since it is larger than the sum of its proper divisors (1).

40223903 is an equidigital number, since it uses as much as digits as its factorization.

40223903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 40223903 is about 6342.2317050073. The cubic root of 40223903 is about 342.6321169667.

The spelling of 40223903 in words is "forty million, two hundred twenty-three thousand, nine hundred three".