40210434243 has 36 divisors (see below), whose sum is σ = 67854620808. Its totient is φ = 22878717120.

The previous prime is 40210434221. The next prime is 40210434247. The reversal of 40210434243 is 34243401204.

It is a happy number.

40210434243 is a `hidden beast` number, since 402 + 10 + 4 + 3 + 4 + 243 = 666.

It is not a de Polignac number, because 40210434243 - 2⁸ = 40210433987 is a prime.

It is a super-3 number, since 3×40210434243³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40210434247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92913 + ... + 298418.

It is an arithmetic number, because the mean of its divisors is an integer number (1884850578).

Almost surely, 2^40210434243 is an apocalyptic number.

40210434243 is a deficient number, since it is larger than the sum of its proper divisors (27644186565).

40210434243 is a wasteful number, since it uses less digits than its factorization.

40210434243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391584 (or 391574 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40210434243 its reverse (34243401204), we get a palindrome (74453835447).

The spelling of 40210434243 in words is "forty billion, two hundred ten million, four hundred thirty-four thousand, two hundred forty-three".