40342303 has 2 divisors, whose sum is σ = 40342304. Its totient is φ = 40342302.

The previous prime is 40342297. The next prime is 40342307. The reversal of 40342303 is 30324304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40342303 - 2²⁵ = 6787871 is a prime.

It is a super-2 number, since 2×40342303² = 3255002822687618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40342307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20171151 + 20171152.

It is an arithmetic number, because the mean of its divisors is an integer number (20171152).

Almost surely, 2^40342303 is an apocalyptic number.

40342303 is a deficient number, since it is larger than the sum of its proper divisors (1).

40342303 is an equidigital number, since it uses as much as digits as its factorization.

40342303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 40342303 is about 6351.5590999376. The cubic root of 40342303 is about 342.9679695374.

Adding to 40342303 its reverse (30324304), we get a palindrome (70666607).

The spelling of 40342303 in words is "forty million, three hundred forty-two thousand, three hundred three".